the ratio drill range - guhring.es · the safety regulations of the vdi guidelines must be...

The RaTio DRillRange Setting the standard in tool life,accuracy and speed:- RT 100 - RT 150 new: RT 100 R

with radius point geometry

RT 100 T up to 30 x D

Perfect combination:Ratio drill and hydraulic chuck for optimal machining results

The name says it all: Ratio drills considerably reduce

machining costs, especially in expensive machining

centers, flexible machining systems and transfer

lines. Ratio drills offer a new dimension, particularly

with regard to quality and quantity. Ratio drills are

high performance tools; our answer to the latest

developments in machining technology:

• highspeedmachining(HSC)

• drymachining

• quasidrymachining

(minimallubricationtechnique,dryHSC)

• machiningofnewmaterialssuchasADIandGGV

• high performace machining of deep holes up to

30xDinsteelsandcastalloys

To take full advantage of the cutting capacity availa-

ble from the latest machining systems, Guhring

Ratio drills, depending on design, offer the follow-

ing special advantages:

• Extremelyhighspeedandfeedrates(seeGurogui-

de).Atspeedsaboven=6,000rev./min(seeHSC!)

thesafety regulationsof theVDIguidelinesmust

be observed.

• Exceptionaltoollifeastoolsaremadefromcarbi-

de (ultra finegrainquality) carefullyproduced in

our own carbide plants, the majority of which are

coated.

• Innovative point geometries such as the radius

pointgrind(patentpending)oftheRT100Rcreate

new possibilities for the machining of difficult-to-

machine materials.

• Improved positional and dimensional accuracy

of hole are further advantages of our latest point

geometries.

RaTio DRillS - aDvanTageS anD Range of applicaTion

3

Type descriptions from page 4

•Ratiodrillsforexternalcoolantfeed page4

•Ratiodrillsforinternalcoolantfeed page5

•Selectionguide page8

Program view frompage10

•Ratiodrillsforexternalcoolantfeed page10

•Ratiodrillsforinternalcoolantfeed page11

Guhringguide(materialgroups,materialexamples) frompage14

Table of conTenTS page

Contents

RT

100

F

RT

100

F

RT

100

G

RT

100

U IC

RT

100

U IC

RT

100

U

RT

100

U

RT

100

F IC

RT

150

GG

IC

RT

100

T IC

RT

100

R IC

RT

100

F IC

4

Type descriptions

Type RT 100 G

Manufacturing specificationsPoint grinding: relieved cone with honed cornerPointangle: 140°Web thinned: Ratio web thinningTolerance on Ø: m7

Range of applicationFor the drilling of short-chipping materials such as cast iron, grey cast iron, spheroidal and malleable cast iron, aluminium alloys with high silicon content. Ultra fine car-bide grade makes this tool ideally suited for the drilling of abrasive materials.

Type RT 100 F

Manufacturing specificationsPoint grinding: relieved conePointangle: 140°Web thinned: Ratio web thinningTolerance on Ø: m7

Range of applicationIdeallysuitedfor thedrillingofhigh-alloyedsteels,stain-less, acid and heat resistant steels, Inconel, Hastelloy,Monel, including brass, bronze, aluminium and magnesi-um, aluminium and magnesium alloys as well as titanium and titanium alloys, sintered metal.

Type RT 100 U

Manufacturing specificationsPoint grinding: relieved cone with honed cornerPointangle: 140°Web thinned: Ratio web thinningTolerance on Ø: m7

Range of applicationFor the drilling of long- and short-chipping materials such as structural and case hardened steels, cast steels, heat-treatable steels and alloyed steels with a tensile strength of up to approx. 1200 N/mm2, including carbon steels, bronze,castironandhigh-alloyedAlSi-alloys.

Ratio drills for external coolant feed

5

Type descriptions

Ratio drills for internal coolant feed

Type RT 100 F

Manufacturing specificationsPoint grinding: relieved conePointangle: 140°Web thinned: Ratio web thinningTolerance on Ø: m7Coolantsupply: spiralised,throughthebody

Range of applicationIdeallysuitedfor thedrillingofhigh-alloyedsteels,stain-less, acid and heat resistant steels, Inconel, Hastelloy,Monel, including brass, bronze, aluminium and magnesi-um, aluminium and magnesium alloys as well as titanium and titanium alloys, sintered metal.

Type RT 100 U

Manufacturing specificationsPoint grinding: relieved cone with honed cornerPointangle: 140°Web thinned: Ratio web thinningTolerance on Ø: m7Coolantsupply: spiralised,throughthebody

Range of applicationFor the drilling of long- and short-chipping materials such as structural and case hardened steels, cast steels, heat-treatable steels and alloyed steels with a tensile strength of up to approx. 1200 N/mm2, including carbon steels, bronze,castironandhigh-alloyedAlSi-alloys.

Type RT 100 R

Manufacturing specificationsPoint grinding: radius point geometryPoint angle: -Web thinned: Ratio web thinningTolerance on Ø: m7Coolantsupply: spiralised,throughthebody

Range of applicationThe international patent applied for radius point grind was especially developed for the machining of new materials suchasCompactedGraphiteIron(CGI)andAustemperedDuctile Iron (ADI). However, Ratio drills RT 100 R alsoachieve optimal tool life and cutting rates in conventional cast materials.

6

Type descriptions

Manufacturing specificationsPoint grinding: relieved cone with honed cornerPointangle: 120°Webthinned: GN-specialHelixangle: negativeWeb taper: noneFlute form: special, with double marginsTolerance on Ø: m7Coolantsupply: throughthebody

Highdynamicstability,goodsurfacequalitiesanddimen-sional accuracy of hole.

Advantages

Range of application For the machining of aluminium and aluminium alloys with high silicon content especially for the production of holes requiring a high alignment accuracy (minimal deviationfromstraightness).

Type RT 150 GN

Type RT 150 GG

Manufacturing specificationsPonit grinding: 4-facet Pointangle: 130°Webthinned: G-specialHelixangle: 0°-straightflutedWeb taper: noneFlute form: special, with double marginsTolerance on Ø: m7Coolantsupply: throughthebody

The tools are convincing thanks to a 4-facet point grind and a130°pointangle,anewcarbidegradespecificallyadap-ted for the machining of cast iron materials, a special flute geometry as well as double margins with exceptionally good self-centering characteristics. The results are dimen-sionally accurate holes, close tolerances on diameter, excellent surface qualities and high alignment accuracy.

Advantages

Range of applicationFor the machining of short-chipping cast iron materials providing a long tool life, highest economic efficiency and good process reliability.

Extremelygoodself-centeringcharacteristics,smalldiame-tertolerances(toH7),excellentsurfacefinish.Highcuttingrates, high productivity.

Advantages

Range of applicationFor the machining of aluminium and aluminium alloys with high silicon content especially for the production of holes requiring a high alignment accuracy (minimal deviationfromstraightness).

Guhring no. 768/769/770 for machining aluminiumGuhring no. 6068/6069/6070 for machining cast materials


Manufacturing specificationsPoint grinding: relieved cone with honed cornerPonitangle: 120°Webthinned: G-specialHelixangle: 0°-straightflutedWeb taper: noneFlute form: special, with double marginsTolerance on Ø: m7Coolantsupply: throughthebody

7

Intermediate dimensions for conventional coolingInadditiontotheex-stockrangeGuhringstilloffersRT100T drills as special tools to specific customer requirements. For conventional cooling we realise intermediate diameters withmaximumdrillingdepthsupto30xDoratotallengthup to max 400 mm.

Special design: RT 100 T drills for minimum quantity lubri-cation (MQL)Forminimumquantity lubricationRT100Tdrillsareonlyavailable as special tools. The MQL tools are produced with a special shank end optimised for MQL machining. Coolant ducts and flutes are also designed especially toMQL requirements. The MQL special tools are available withdiametersfrom3.0upto16.0mmandmax.drillingdepthsupto30xDoratotallengthuptomax.400mm.Asonlyanextremelysmallamountofcoolantisappliedforminimal lubrication, the delivery of the coolant to the most effective location is of extreme importance. The tapered shank end, developed by Guhring, optimally satisfies theconditions relevant for minimal lubrication applications: It prevents neat oil from consolidating and offers simplehandling characteristics and cost-effective production.IncombinationwithGuringhydraulicexpansionchucksandGuhring‘sMQLcoolantdeliveryset,itoffersanoptimalandcost-effective solution for MQL machining with highest bore hole quality and outstanding lifetime.

Shankendsuitableforminimalquantity lubrication without consolidation or dead pockets of coolant.

Type descriptions


The optimised flute cross section ensures optimal chip eva-cuation from deep holes. The maximum coolant duct cross section ensures optimal supply of coolant to the cutting edge.Extremelysmoothsurfacesintheareaoftheflutesas well as the cutting edges and flanks minimise wear and support chip evacuation.

Advantages

Type RT 100 T

Manufacturing specificationsPoint grinding: relieved cone with honed cornerPointangle: 135°Web thinned: Ratio web thinningTolerance on Ø: h7Coolantsupply: spiralised,throughthebody

Range of applicationAs standard tools for the conventional wet machining ofsteels and cast alloys at drilling depths from 20 x D to30xD.

MQL suitable shank end

Minimal dead area

MQL Length adjustment screw

HSK-Ahydraulicexpansion chuck

Guhringno.4299

MQL coolant delivery set Guhringno.4939

8

3 x D

RT 150 GG

RT 150 GN

RT 100 F

F

S

1798 DZ

2472 F 2480 F 2473 F

2475 F

1184 HE 1673 HA 1242 DZ

1659 HA 1702 DZ

2477 F 2469 F

1661 HA 1181 HE

1660 HA 1180 HE 2468 F

S

SSS

SS

S

S

S

4 x D

768 HA

6068 HA

RT 100 R

RT 150 GG

RT 100 U

RT 100 U

RT 100 F

RT 100 G

RT 100 T

A

Program view

DZ=straightshank

bright

withre-inforcedplainshank(HA)

TiN-coated

withre-inforcedshankandwhistlenotchflat(HE)

FIRE-coated

RT100Twithre-inforcedplainshank(HA)

TiAlN-coated (tipcoating)

Shank designs and surface finishesShouldtherecommendedtoolnotbeavailablefromstock,then this selection guide offers alternatives. It describesfrom top to bottom what tool can substitute which tool. Example:typeGcanbesubstitutedbytypeFandtypeU.TypeFby typeU,butnot typeG. For furtherdetails seeGuroguide.

Coolantsupply

Workpiecematerial Tool type

Rigid conditionswith

internal cooling

≤15xD

NO

AlSi-alloys?

Structuralsteels,carbon steels,

mixed machining?

Hightensilesteel?

NO

NO

YES

YES

YES

NO

YES

Rigid conditionswithout

internal cooling

YES Castiron,AlSi-alloys?

Hightensilesteel?

Structuralsteels,carbon steels,

mixed machining?

NO

NO

YES

YES

YES

Steelsandcast alloys

Castiron?

YES

>15xD

Selection guide

9

5 x D 7 x D 10 x D 15 x D

1799 DZ

1243 DZ 2717 HA 2718 HE 2719F

2996F 2474F

1663 HA 2479F 1183 HE 2471F 4045 F

4044 F

2712F

2711 HA

1662 HA 1182 HE

2478F 2470F

773 HA

HA

770 HA

HE 5525 F

SSS

SS

SS

SHA

6502 F

12 x D

6070 HA

HAHA 6501F

769 HA

6069 HA

30xD

6511HA 6512HA 6513HA

AAA

≤20xD

≤25xD

≤30xD

The illustrated optimum, good and minimum required coolant

volumeapplyonlytoRatiodrills.Incontrasttothepressure,which

is a feature of the machine tool; the cooling system fitted to it and

also the possibility of leakage, volume does not depend on the

Necessary coolant pressures and volumes

for the application of Ratio drills

optimum

good

min. requirement

TypeRT100withinternal spiral coolant ducts

Type150GGstraight-fluted(inAlSi7)Tool diameter mm

Co

ola

nt

pre

ssu

rep

[b

ar]

Tool diameter mm

Co

olan

tvolu

meV

[l/min

]

machine.The pressure figures given are therefore recommenda-

tions which serve only as guidelines.

10

bright TiAlN FIRE TiN

Standard Type Tool illustration Drilling depth Tool material Surface Shank

design Diameter range Guhring no.

Discount group


DIN 6539

RT 100 G 3 x D

Solid carbide DZ 3.300 - 16.000 1798 121

DIN 6539

RT 100 F 3 x D

Solid carbide DZ 3.000 - 15.000 1702 121

DIN 6537 K

RT 100 F 3 x D

Solid carbide HA 4.600 - 12.500 1659 121

DIN 6537 K

RT 100 F 3 x D

Solid carbide HA 3.700 - 12.500 2475 121

DIN 6539

RT 100 U 3 x D

Solid carbide DZ 3.000 - 16.000 1242 121

DIN 6539

RT 100 U 3 x D

Solid carbide DZ 3.000 - 16.000 2473 121

DIN 6537 K

RT 100 U 3 x D

Solid carbide HA 3.000 - 20.000 1673 121

DIN 6537 K

RT 100 U 3 x D

Solid carbide HA 3.000 - 20.000 2480 121

DIN 6537 K

RT 100 U 3 x D

Solid carbide HE 3.000 - 20.000 1184 121

DIN 6537 K

RT 100 U 3 x D

Solid carbide HE 3.000 - 20.000 2472 121

Guhring std.

RT 100 G 5 x D

Solid carbide DZ 5.000 - 16.000 1799 121

DIN 6537 L

RT 100 F 5 x D

Solid carbide HA 3.000 - 14.000 2712 121

Guhring std.

RT 100 U 5 x D

Solid carbide DZ 5.000 - 16.000 1243 121

Guhring std.

RT 100 U 5 x D

Solid carbide DZ 5.000 - 16.000 2474 121

DIN 6537 L

RT 100 U 5 x D

Solid carbide HA 3.300 - 16.000 2717 121

Ratio drills

11

bright TiAlN FIRE TiN

Ratio drills



Discount group


DIN 6537 L

RT 100 U 5 x D

Solid carbide HA 3.000 - 16.000 2996 121

DIN 6537 L

RT 100 U 5 x D

Solid carbide HE 3.000 - 16.000 2718 121

DIN 6537 L

RT 100 U 5 x D

Solid carbide HE 3.000 - 16.000 2719 121


DIN 6537 K

RT 100 F 3 x D

Solid carbide HA 4.000 - 22.000 1660 121

DIN 6537 K

RT 100 F 3 x D

Solid carbide HE 4.000 - 22.500 1180 121

DIN 6537 K

RT 100 F 3 x D

Solid carbide HE 4.000 - 20.000 2468 121

DIN 6537 L

RT 100 F 5 x D

Solid carbide HA 4.000 - 24.500 1662 121

DIN 6537 L

RT 100 F 5 x D

Solid carbide HA 4.000 - 20.000 2478 121

DIN 6537 L

RT 100 F 5 x D

Solid carbide HE 4.000 - 25.000 1182 121

DIN 6537 L

RT 100 F 5 x D

Solid carbide HE 4.000 - 20.000 2470 121

DIN 6537 K

RT 100 U 3 x D

Solid carbide HA 5.000 - 20.000 1661 121

DIN 6537 K

RT 100 U 3 x D

Solid carbide HA 3.000 - 20.000 2477 121

DIN 6537 K

RT 100 U 3 x D

Solid carbide HE 4.000 - 20.000 1181 121

DIN 6537 K

RT 100 U 3 x D

Solid carbide HE 3.000 - 20.000 2469 121

12

Al GAl GGAl

Al

Al

Al

G

G

G

bright TiAlN FIRE TiN aluminium cast ironbright TiAlN FIRE TiN aluminium cast iron



Discount group


DIN 6537 L

RT 100 U 5 x D

Solid carbide HA 4.000 - 20.000 1663 121

DIN 6537 L

RT 100 U 5 x D

Solid carbide HA 3.000 - 20.000 2479 121

DIN 6537 L

RT 100 U 5 x D

Solid carbide HE 4.000 - 20.000 1183 121

DIN 6537 L

RT 100 U 5 x D

Solid carbide HE 3.000 - 20.000 2471 121

DIN 6537 L

RT 100 R 5 x D

Solid carbide HA 3.000 - 20.000 6501 165

Guhring std.

RT 100 R 7 x D

Solid carbide HA 4.000 - 20.000 6502 165

Guhring std.

RT 100 U 7 x D

Solid carbide HA 5.000 - 20.000 2711 121

Guhring std.

RT 100 U 7 x D

Solid carbide HE 4.000 - 20.000 4044 121

Guhring std.

RT 100 U 7 x D

Solid carbide HE 4.000 - 20.000 4045 121

Guhring std.

RT 150 GG 4 x D

Solid carbide HA 3.000 - 20.000 768 121

Guhring std.

RT 150 GG 4 x D

Solid carbide HA 3.000 - 20.000 6068 121

Guhring std.

RT 150 GG 7 x D

Solid carbide HA 3.000 - 20.000 769 121

Guhring std.

RT 150 GG 7 x D

Solid carbide HA 3.000 - 20.000 6069 121

Guhring std.

RT 150 GG 10 x D

Solid carbide HA 3.000 - 20.000 770 121

Guhring std.

RT 150 GG 10 x D

Solid carbide HA 3.000 - 19.500 6070 121

Ratio drills

Al G

13

Al G

A B

bright TiAlN FIRE TiN aluminium cast ironbright TiAlN FIRE TiN aluminium cast iron



Discount group


Guhring std.

RT 150 GN 15 x D

Solid carbide HA 5.000 - 14.000 773 121

Guhring std.

RT 100 T 20 x D

Solid carbide DZ 3.000 - 14.000 6511 165

Guhring std.

RT 100 T 25 x D

Solid carbide DZ 3.000 - 12.000 6512 165

Guhring std.

RT 100 T 30 x D

Solid carbide DZ 3.000 - 10.000 6513 165

Ratio drills

Typical hole quality characteristics, produced in 42CrMo4V with TiN-coated HSS drills and Ratio drills.

The overall total of the maximum positive and negative deviations is the sum of the total run-out in relation to the blackcircleasmeasuredonstandardinstruments(dRmax).The red lines at the hole centres indicate the direction and amplitudeof thedisplacementsAS (AxisShifting)of theproduced hole from the true center point.The parameter showingthelargestdeviationisdecisivefortheITqualityclass of the hole in relation to the tool diameter.

The black circle in the diagram represents the nominal hole diameter which the tool should ideally produce. The red circle indicates the form actually produced. The mean value of the radius of the red circle, i.e. the average diame-ter, isshownbythebluecircle (withRatiodrills theave-rage diameter is practically identical to the actual diameter produced).

Workpiece:42CrMo4Vvc=25m/minf =0.25mm/rev.nom-D=14.5mm+Rmax =131.8µm–Rmax =–49.1µmact.-D =14.566mmdRmax =103.6µmAV =49.2µmRa=2.6µm-Rz=6.8µmIT-quality =IT12Measureddepth=5mm

Workpiece:42CrMo4Vvc =70m/minf =0.25mm/rev.p-IK =40barV-IK =17.5l/minnom-D=14.5mm+Rmax =26.7µm–Rmax =–17.2µmact.-D =14.509mmdRmax =5.2µmAV =22.8µmRa=1.04µm-Rz=3.2µmIT-quality =IT8Measureddepth =5mm

A=producedbyatypeNHSSdrill,DIN338,Guhringno.651B=producedbytypeRT100,Guhringno.1181,eachheldinsidelockholderstoDIN1835part2.

14

≤500>500-850≤850850-1000≤700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000>650-1000

≤330HB≤750750-800850-1200

≤40-54HRC>54-60HRC

≤1200≤240HB <300HB ≤240HB<300HB≤350HB

≤850850-1200≤450≤450≤600≤600≤450≤400≤600≤600≤600 >600-850≤850850-1000

–– ––

Material group Material examples, new description(olddescriptioninbrackets)Figures in bold = material no. to DIN EN

Tensile strength HardnessMPa(N/mm2)

Cool-ant

Commonstructuralsteels 1.0035S185(St33),1.0486P275N(StE285),1.0345 P235GH(H1),1.0425P265GH(H2)1.0050E295(St50-2),1.0070E360(St70-2),1.8937 P500NH(WStE500)

Free-cutting steels 1.071811SMnPb30(9SMnPb28),1.073611SMn37(9SMn36)1.072746S20(45S20),1.0728(60S20),1.075746SPb20(45SPb20)

Unalloyed heat-treatable steels 1.0402C22,1.1178C30E(Ck30)1.0503C45,1.1191C45E(Ck45)1.0601C60,1.1221C60E(Ck60)

Alloyedheat-treatablesteels 1.513150MnSi4,1.700338Cr2,1.703028Cr41.571036NiCr6,1.703541Cr4,1.722542CrMo4

Unalloyed case hardened steels 1.0301(C10),1.1121C10E(Ck10)Alloyedcasehardenedsteels 1.704338Cr4

1.575215NiCr13(15NiCr13),1.713116MnCr5,1.726420CrMo5Nitridingsteels 1.850434CrAl6

1.851931CrMoV9,1.855034CrAlNi7Tool steels 1.1750C75W,1.2067102Cr6,1.230729CrMoV9

1.2080X210Cr12,1.2083X42Cr13,1.2419105WCr6,1.2767X45NiCrMo4Highspeedsteels 1.3243S6-5-2-5,1.3343S6-5-2,1.3344S6-5-3Springsteels 1.502655Si7,1.717655Cr3,1.815951CrV4(51CrV4)Stainlesssteels,sulphured 1.4005X12CrS13,1.4104X14CrMoS17,1.4105X6CrMoS17,1.4305X8CrNiS18-9 austenitic 1.4301X5CrNi18-10(V2A),1.4541X6CrNiTi18-10,1.4571X6CrNiMoTi17-12-2(V4A) martensitic 1.4057X20CrNi 17 2(X17CrNi16-2),1.4122X39CrMo17-1,1.4521X2CrMoTi18-2Hardenedsteels –

Specialalloys Nimonic,Inconel,Monel,HastelloyCastiron 0.6010 EN-GJL-100(GG10),0.6020 EN-GJL-200(GG20)

0.6025 EN-GJL-250(GG25),0.6035 EN-GJL-350(GG35)Spheroidalgraphiteironand 0.7050 EN-GJS-500-7(GGG50),0.8035 EN-GJMW-350-4(GTW35)malleable cast iron 0.7070 EN-GJS-700-2(GGG70),0.8170 EN-GJMB-700-2(GTS70)Chilledcastiron –Ti and Ti-alloys 3.7024Ti99,5,3.7114TiAl5Sn2,5,3.7124TiCu2

3.7154TiAl6Zr5,3.7165TiAl6V4,3.7184TiAl4Mo4Sn2,5,-TiAl8Mo1V1AluminiumandAl-alloys 3.0255Al99,5,3.2315AlMgSi1,3.3515AlMg1Alwroughtalloys 3.0615AlMgSiPb,3.1325AlCuMg1,3.3245AlMg3Si,3.4365AlZnMgCu1,5Alcastalloys≤10%Si 3.2131G-AlSi5Cu1,3.2153G-AlSi7Cu3,3.2573G-AlSi9>10%Si 3.2581G-AlSi12,3.2583G-AlSi12Cu,-G-AlSi12CuNiMgMagnesium alloys 3.5200 MgMn2,3.5812.05 G-MgAl8Zn1,3.5612.05 G-MgAl6Zn1Copper,low-alloyed 2.0070SE-Cu,2.1020CuSn6,2.1096G-CuSn5ZnPbBrass, short-chipping 2.0380CuZn39Pb2,2.0401CuZn39Pb3,2.0410CuZn43Pb2 long-chipping 2.0250CuZn20,2.0280CuZn33,2.0332CuZn37Pb0,5Bronze, short-chipping 2.1090CuSn7ZnPb,2.1170CuPb5Sn5,2.1176CuPb10Sn

2.0790CuNi18Zn19PbBronze, long-chipping 2.0916CuAl5,2.0960CuAl9Mn,2.1050CuSn10

2.0980CuAl11Ni,2.1247CuBe2Duroplastics Bakelit, Resopal, Pertinax, MoltoprenThermoplastics Plexiglass,Hostalen,Novodur,MakralonKevlar KevlarGlass,carbonconcent.plastics GFK/CFK

Cooling: without coolant ducts with coolant ducts

Coolant: Air Neatoil Solubleoil

Cuttingdirection: right-hand cutting left-hand cutting

DrillØmm

Feed column no.1 2 3 4 5 6 7 8 9

f(mm/rev.)0.50 0.004 0.006 0.007 0.008 0.010 0.012 0.014 0.016 0.0191.00 0.006 0.008 0.012 0.014 0.016 0.018 0.020 0.023 0.0252.00 0.020 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.1252.50 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.1603.15 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.1604.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2005.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2506.30 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.3158.00 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.315

10.00 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.40012.50 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.50016.00 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.63020.00 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.63025.00 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 0.80031.50 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.00040.00 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.000 1.25050.00 0.250 0.310 0.400 0.500 0.630 0.800 1.000 1.250 1.25063.00 0.315 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.60080.00 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.600 2.000

Tools with bold feed column no. are preferred choice.

with int. cooling without int. coolingbright TiAlN FIRE TiN with int. cooling without int. coolingbright TiAlN FIRE TiN

Ratio Drills

15

K/P K/PRT100F RT100U

1660 1661 24771180 2468 1181 2469

110 145 6 6 7 6 7 6 790 120 5 5 6 5 6 5 6130 170 7 7 8 7 8 7 8110 145 7 7 8 7 8 7 8100 130 7 7 8 7 8 7 895 125 6 6 7 6 7 6 790 120 6 6 7 6 7 6 790 120 6 6 7 6 7 6 780 105 6 6 7 6 7 6 7110 145 7 7 8 7 8 7 890 120 6 6 7 6 7 6 765 85 4 4 5 4 5 4 585 110 6 6 7 6 7 6 780 105 4 4 5 5 5 5 560 80 5 5 6 5 6 5 650 65 4 4 5 4 5 4 545 60 3 3 445 60 2 2 3 2 3 2 345 60 4 4 5 4 5 4 540 55 4 4 5 4 5 4 535 45 4 4 5 4 5 4 540 55 2 2 3 2 3 2 325 35 1 1 2 1 2 1 225 35 3 3 4 3 4 3 4160 195 8 8 9 8 9 8 9120 160 8 8 9 8 9 8 9100 140 8 8 9 8 9 8 995 130 7 7 8 7 8 7 830 40 2 2 3 2 3 2 335 45 3 3 4 3 4 3 430 40 2 2 3 2 3 2 3240 310 8 8 9 8 9 8 9240 310 8 8 9 8 9 8 9220 260 8 8 9 8 9 8 9170 220 8 8 9 8 9 8 9230 280 7 7 8 7 8 7 895 125 6 6 7 6 7 6 7250 325 7 7 8 7 8 7 8170 220 6 6 7 6 7 6 795 125 6 6 7 6 7 6 780 105 5 5 6 5 6 5 670 90 5 5 6 5 6 5 660 80 5 5 6 5 6 5 6

KRT100G

1798

130 6100 6100 680 625 2

220 7220 7200 8150 6180 680 5180 6

80 560 560 440 3

with int. cooling without int. coolingbright TiAlN FIRE TiN

GUHRINGGUIDE


Ratio Drills

Tool materialCarbidegrade

TypeSurfacefinish

Cooling

Gu

h. n

o. DIN6537HAHE

DIN6538 HEDIN6539 DZ

≤3×D drilling depth 2-fluted

Feed columnno.

Feed columnno.

Carbide Carbide

vcm/min

vcm/min

vcm/min

16

≤500>500-850≤850850-1000≤700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000>650-1000

≤330HB≤750750-800850-1200

≤40-54HRC>54-60HRC

≤1200≤240HB <300HB ≤240HB<300HB≤350HB

≤850850-1200≤450≤450≤600≤600≤450≤400≤600≤600≤600 >600-850≤850850-1000

–– ––



Cool-ant

















DrillØmm

Feed column no.1 2 3 4 5 6 7 8 9

f(mm/rev.)0.50 0.004 0.006 0.007 0.008 0.010 0.012 0.014 0.016 0.0191.00 0.006 0.008 0.012 0.014 0.016 0.018 0.020 0.023 0.0252.00 0.020 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.1252.50 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.1603.15 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.1604.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2005.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2506.30 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.3158.00 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.315

10.00 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.40012.50 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.50016.00 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.63020.00 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.63025.00 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 0.80031.50 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.00040.00 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.000 1.25050.00 0.250 0.310 0.400 0.500 0.630 0.800 1.000 1.250 1.25063.00 0.315 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.60080.00 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.600 2.000



Al

especially suitable formachining aluminium

G

especially suitable formachining cast iron

Ratio Drills

17


1659 2475 1673 24801184 2472

1702 1242 2473

100 130 6 7 6 6 7 6 7 6 785 110 5 6 5 5 6 5 6 5 6110 145 7 8 7 7 8 7 8 7 885 110 6 7 6 6 7 6 7 6 790 120 6 7 6 6 7 6 7 6 785 110 6 7 6 6 7 6 7 6 780 105 6 7 6 6 7 6 7 6 780 105 6 7 6 6 7 6 7 6 775 100 5 6 5 5 6 5 6 5 6100 130 7 8 7 7 8 7 8 7 890 120 6 7 6 6 7 6 7 6 765 85 4 5 4 4 5 4 5 4 575 100 5 6 5 5 6 5 6 5 670 90 4 5 4 4 5 4 5 4 550 65 5 6 5 5 6 5 6 5 640 55 4 5 4 4 5 4 5 4 540 55 3 4 345 45 2 3 2 2 3 2 3 2 340 55 3 4 3 3 4 3 4 3 435 45 3 4 3 3 4 3 4 3 435 45 2 3 2 2 3 2 3 2 335 45 2 3 2 2 3 2 3 2 320 25 1 2 1 1 2 1 2 1 220 25 3 4 3 3 4 3 4 3 4160 210 7 8 7 7 8 7 8 7 8120 155 7 8 7 7 8 7 8 7 8120 155 6 7 6 6 7 6 7 6 795 125 6 7 6 6 7 6 7 6 725 35 2 3 2 2 3 2 3 2 330 40 2 3 2 3 4 3 4 3 425 35 2 3 2 2 3 2 3 2 3

200 260 8 9 8 8 9 8 9 8 9200 260 8 9 8 8 9 8 9 8 9170 220 8 9 8 8 9 8 9 8 9140 180 7 8 7 7 8 7 8 7 8200 260 7 8 7 7 8 7 8 7 880 105 6 7 6 6 7 6 7 6 7210 270 7 8 7 7 8 7 8 7 8140 180 6 7 6 6 7 6 7 6 780 105 5 6 5 5 6 5 6 5 665 85 5 6 5 5 6 5 6 5 660 80 4 5 4 4 5 4 5 4 545 60 4 5 4 4 5 4 5 4 5

KRT150GG

768 6068

120 7 7100 7 790 7 780 7 740 2 2

410 9 7410 9 7380 9 7330 9 7

280 9 9

110 6 680 5 5

Al G


GUHRINGGUIDE


Ratio Drills


TypeSurfacefinish

Cooling

Gu

hri

ng

no. DIN6537

HAHE

DIN6538 HEDIN6539 DZG.S. HA

Carbide

Feed columnno.

Carbide

≤4×D≤3×D drilling depth

Feed columnno.

vcm/min

vcm/min

vcm/min

18

≤500>500-850≤850850-1000≤700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000>650-1000

≤330HB≤750750-800850-1200

≤40-54HRC>54-60HRC

≤1200≤240HB <300HB ≤240HB<300HB≤350HB

≤850850-1200≤450≤450≤600≤600≤450≤400≤600≤600≤600 >600-850≤850850-1000

–– ––



Cool-ant

















DrillØmm

Feed column no.1 2 3 4 5 6 7 8 9

f(mm/rev.)0.50 0.004 0.006 0.007 0.008 0.010 0.012 0.014 0.016 0.0191.00 0.006 0.008 0.012 0.014 0.016 0.018 0.020 0.023 0.0252.00 0.020 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.1252.50 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.1603.15 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.1604.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2005.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2506.30 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.3158.00 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.315

10.00 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.40012.50 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.50016.00 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.63020.00 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.63025.00 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 0.80031.50 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.00040.00 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.000 1.25050.00 0.250 0.310 0.400 0.500 0.630 0.800 1.000 1.250 1.25063.00 0.315 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.60080.00 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.600 2.000



Ratio Drills

19


1662 2478 1663 24791182 2470 1183 2471

110 145 6 7 6 7 6 7 6 790 120 5 6 5 6 5 6 5 6130 170 7 8 7 8 7 8 7 8110 145 7 8 7 8 7 8 7 8100 130 7 8 7 8 7 8 7 895 125 6 7 6 7 6 7 6 790 120 6 7 6 7 6 7 6 790 120 6 7 6 7 6 7 6 780 105 6 7 6 7 6 7 6 7110 145 7 8 7 8 7 8 7 890 120 6 7 6 7 6 7 6 765 85 4 5 4 5 4 5 4 585 110 6 7 6 7 6 7 6 780 105 4 5 4 5 4 5 4 560 80 5 6 5 6 5 6 5 650 65 4 5 4 5 4 5 4 545 60 3 4 3 445 60 2 3 2 3 2 3 2 345 60 4 5 4 5 4 5 4 540 55 4 5 4 5 4 5 4 535 45 4 5 4 5 4 5 4 540 55 2 3 2 3 2 3 2 325 35 1 2 1 2 1 2 1 225 35 3 4 3 4 3 4 3 4160 210 8 9 8 9 8 9 8 9120 160 8 9 8 9 8 9 8 9100 140 8 9 8 9 8 9 8 995 130 7 8 7 8 7 8 7 830 40 2 3 2 3 2 3 2 335 45 3 4 3 4 3 4 3 430 40 2 3 2 3 2 3 2 3

240 310 8 9 8 9 8 9 8 9240 310 8 9 8 9 8 9 8 9220 260 8 9 8 9 8 9 8 9170 220 8 9 8 9 8 9 8 9230 280 7 8 7 8 7 8 7 895 125 6 7 6 7 6 7 6 7250 325 7 8 7 8 7 8 7 8170 220 6 7 6 7 6 7 6 795 125 6 7 6 7 6 7 6 780 105 5 6 5 6 5 6 5 670 90 5 6 5 6 5 6 5 660 80 5 6 5 6 5 6 5 6

KRT100G

1799

130 6100 6100 680 625 2

220 7220 7200 8150 6180 680 5180 6

80 560 560 440 3


GUHRINGGUIDE


Ratio Drills


TypeSurfacefinish

Cooling

Gu

h. n

o. DIN6537HAHE

DIN6538 HEG.S. DZ

Feed columnno.

CarbideCarbideCarbide

Feed columnno.


vcm/min

vcm/min

vcm/min

20

≤500>500-850≤850850-1000≤700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000>650-1000

≤330HB≤750750-800850-1200

≤40-54HRC>54-60HRC

≤1200≤240HB <300HB ≤240HB<300HB≤350HB

≤850850-1200≤450≤450≤600≤600≤450≤400≤600≤600≤600 >600-850≤850850-1000

–– ––



Cool-ant

















DrillØmm

Feed column no.1 2 3 4 5 6 7 8 9

f(mm/rev.)0.50 0.004 0.006 0.007 0.008 0.010 0.012 0.014 0.016 0.0191.00 0.006 0.008 0.012 0.014 0.016 0.018 0.020 0.023 0.0252.00 0.020 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.1252.50 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.1603.15 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.1604.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2005.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2506.30 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.3158.00 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.315

10.00 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.40012.50 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.50016.00 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.63020.00 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.63025.00 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 0.80031.50 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.00040.00 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.000 1.25050.00 0.250 0.310 0.400 0.500 0.630 0.800 1.000 1.250 1.25063.00 0.315 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.60080.00 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.600 2.000



Ratio Drills

21


2712 2717 29962718 2719

1243 2474

100 130 7 6 7 6 7 6 785 110 6 5 6 5 6 5 6110 145 8 7 8 7 8 7 885 110 7 6 7 6 7 6 790 120 7 6 7 6 7 6 785 110 7 6 7 6 7 6 780 105 7 6 7 6 7 6 780 105 7 6 7 6 7 6 775 100 6 5 6 5 6 5 6100 130 8 7 8 7 8 7 890 120 7 6 7 6 7 6 765 85 5 4 5 4 5 4 575 100 6 5 6 5 6 5 670 90 5 4 5 4 5 4 550 65 6 5 6 5 6 5 640 55 5 4 5 4 5 4 5

55 435 45 3 2 3 2 3 2 340 55 4 3 4 3 4 3 435 45 4 3 4 3 4 3 435 45 3 2 3 2 3 2 335 45 2 2 3 2 3 2 320 25 2 1 2 1 2 1 220 25 4 3 4 3 4 3 4160 195 8 7 8 7 8 7 8120 155 8 7 8 7 8 7 8120 145 7 6 7 6 7 6 795 125 7 6 7 6 7 6 725 35 3 2 3 2 3 2 330 40 3 3 4 3 4 3 425 35 3 2 3 2 3 2 3

200 260 9 8 9 8 9 8 9200 260 9 8 9 8 9 8 9170 220 9 8 8 8 8 8 8140 170 8 7 8 7 8 7 8200 260 8 7 8 7 8 7 880 105 7 6 7 6 7 6 7210 270 8 7 8 7 8 7 8140 180 7 6 7 6 7 6 780 105 6 5 6 5 6 5 665 85 6 5 6 5 6 5 660 80 5 4 5 4 5 4 545 60 5 4 5 4 5 4 5


GUHRINGGUIDE


Ratio Drills


TypeSurfacefinish

Cooling

Gu

h. n

o.

DIN6537HAHE

G.S. DZ


Feed columnno.

Carbide

vcm/min

vcm/min

22

≤500>500-850≤850850-1000≤700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000>650-1000

≤330HB≤750750-800850-1200

≤40-54HRC>54-60HRC

≤1200≤240HB <300HB ≤240HB<300HB≤350HB

≤850850-1200≤450≤450≤600≤600≤450≤400≤600≤600≤600 >600-850≤850850-1000

–– ––



Cool-ant

















DrillØmm

Feed column no.1 2 3 4 5 6 7 8 9

f(mm/rev.)0.50 0.004 0.006 0.007 0.008 0.010 0.012 0.014 0.016 0.0191.00 0.006 0.008 0.012 0.014 0.016 0.018 0.020 0.023 0.0252.00 0.020 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.1252.50 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.1603.15 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.1604.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2005.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2506.30 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.3158.00 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.315

10.00 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.40012.50 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.50016.00 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.63020.00 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.63025.00 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 0.80031.50 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.00040.00 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.000 1.25050.00 0.250 0.310 0.400 0.500 0.630 0.800 1.000 1.250 1.25063.00 0.315 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.60080.00 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.600 2.000



Ratio Drills

Al

especially suitable formachining aluminium

G

especially suitable formachining cast iron

Pilot holes are always necessary for drilling depths over 7 x D:1.Thepilotholecanbeproducedwithashort,rigiddrill.Thediametershould

be0.01-0.02mmlargerthanthediameteroftheRatiodrill.Drillingdepth≥1xD.

2.Alternatively,theRatioDrillscanproducetheirownpilothole.Cuttingspeedandfeedratemustthereforebereducedby30-40%.

3. Acoolantpressureof40barisrecommended.

For safety reasons it is very important, that a drill doesnot exceed a speed of n = 6 000 rev./min when not supported.The centrifugal forces could break these long tools beforereaching the workpiece surface!

23

K/PRT100U

2711 40444045

110 145 5 690 120 4 5130 170 6 7110 145 6 7100 130 6 795 125 5 690 120 5 690 120 5 680 105 5 6110 145 6 790 120 5 665 85 3 480 110 5 675 105 4 455 80 4 540 65 3 445 60 2 445 60 1 245 60 3 440 55 3 435 45 3 440 55 1 225 35 1 125 35 2 3150 210 7 8120 180 7 8100 160 7 895 130 6 730 40 1 235 40 1 330 40 1 2220 310 7 8220 310 7 8200 260 7 8170 220 7 8230 280 6 795 125 6 6

250 325 7 7170 220 6 695 125 6 680 105 5 570 90 5 560 80 5 5

KRT150GG

769 6069

120 6 7100 6 790 6 780 6 740 2 2

410 8 7410 8 7380 8 7330 8 7

280 7 7

110 6 680 5 5

Al G

≤10×DK

RT150GN

773

120 5100 590 580 540 1

410 6410 6380 7330 7

280 6

110 580 4

≤15×DK

RT150GG

770 6070

120 6 6100 6 690 6 680 6 640 2 1

410 8 6410 8 6380 8 6330 8 6

280 7 7

110 6 680 5 5

Al G Al


GUHRINGGUIDE


Ratio Drills

Feed columnno.

Carbide

≤7×D drilling depth 2-flutedTool material

CarbidegradeType

SurfacefinishCooling

Gu

h. n

o. DIN6538 HE

G.S.HAHE

Carbide

Feed columnno.

Carbide

Feed columnno.

Carbide

Feed col.no.

vcm/min

vcm/min

vcm/min

vcm/min

vcm/min

24

≤500>500-850≤850850-1000≤700700-850850-1000850-10001000-1200≤750850-10001000-1200≥850-10001000-1200≤850850-1000>650-1000

≤330HB≤750750-800850-1200

≤40-54HRC>54-60HRC

≤1200≤240HB<300HB≤220HB<300HB

≤240HB<300HB≤350HB

≤850850-1200≤450≤450≤600≤600≤450≤400≤600≤600≤600>600-850≤850850-1000

24

DrillsØmm

Feed column no. RT 100 R1 2 3 4 5 6 7 8 9

f(mm/rev.)0.50 0.004 0.006 0.007 0.008 0.010 0.012 0.014 0.016 0.0191.00 0.006 0.008 0.012 0.014 0.016 0.018 0.020 0.023 0.0252.00 0.020 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.1252.50 0.025 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.1603.15 0.032 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.1604.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2005.00 0.040 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.2506.30 0.050 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.3158.00 0.063 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.315

10.00 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.40012.50 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.50016.00 0.100 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.63020.00 0.125 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.63025.00 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 0.80031.50 0.160 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.00040.00 0.200 0.250 0.315 0.400 0.500 0.630 0.800 1.000 1.25050.00 0.250 0.310 0.400 0.500 0.630 0.800 1.000 1.250 1.25063.00 0.315 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.60080.00 0.400 0.500 0.630 0.800 1.000 1.250 1.600 1.600 2.000

Ratio drills ExclusiveLine












0.6025 EN-GJL-250(GG25),0.6035 EN-GJL-350(GG35)NewcastmaterialsCGI EN-GJV250(GGV25),EN-GJV350(GGV35)

EN-GJV400(GGV40),EN-GJV500(GGV50), SiMo6NewcastmaterialsADI EN-GJS-800-8(ADI800),EN-GJS-1000-5(ADI1000)

EN-GJS-1200-2(ADI1200),EN-GJS-1400-1(ADI1400)Spheroidalgraphiteironand 0.7050 EN-GJS-500-7(GGG50),0.8035 EN-GJMW-350-4(GTW35)malleable cast iron 0.7070 EN-GJS-700-2(GGG70),0.8170 EN-GJMB-700-2(GTS70)Chilledcastiron –Ti and Ti-alloys 3.7024Ti99,5,3.7114TiAl5Sn2,5,3.7124TiCu2



2.0980CuAl11Ni,2.1247CuBe2




Alldeepholedrillsmusthavesupportforthepilothole.Deepholedrillsmustneveroperateatfullspeed without support in the machine shop.

Procedure RT 100 T: • Initialmillingofsurface.Thesurfacemustbemachinedatrightanglesto

the entry angle of the drilling operation.• Productionofacylindricalpilothole(toleranceF9)withaminimum

drillingdepthof1xD.• Entryinthepilotholeataspeedofapprox.

300rev./minandwithafeedrateofapprox.500mm/min.• Settingofcoolantpressureandspeed.• Continuousdrillingtocompleteholedepthwithoutwoodpecking.• Forthroughholeswithobliqueexit,reducethefeedratevfto40%

approx.1mmpriortobreak-through.• Afterreachingholedepthstopmachinespindleandcoolantsupply,

withdrawal in top gear.

●Nolongtimetesting,pleaseaskforspeedsandfeeds.



External cooling recommendations RT 100 R:We recommend using soluble oil or neat oil. WithRT100R, cooling with air is also possible under certain conditions. However,theapplicationunderMQLconditions,forwhichthetools are extremely well suited, is always preferable. For MQL applications we recommend the tapered MQL shank endaswellastheMQLcomponentsfromGuhring.Further information is available on request.

25

K/P K/PRT 100 R RT 100 R

65016502

≤5×D ≤7×D≤20xD ≤25xD ≤30xD

210 9 8160 9 8130 8 7100 8 780 8 760 8 7160 9 8

1300 8 7

K30/K40 K30/K40 K30/K40RT 100 T RT 100 T RT 100 T

6511 6512 6513

vcm/min

vcm/min

vcm/min

vcm/min

vcm/min

vcm/min

110 8 70 8 100 8 60 8 80 7 60 7110 8 70 8 100 8 60 8 80 7 60 7140 8 70 8 120 8 60 8 100 8 60 7120 8 70 8 100 8 60 8 100 8 60 7110 8 70 8 100 8 60 8 80 7 60 7110 8 70 8 100 8 60 8 80 7 60 7100 7 70 8 100 7 60 8 80 7 60 7110 7 80 7 100 7 70 7 80 7 60 6110 6 80 7 100 6 70 7 80 6 60 6110 8 • • 100 8 • • 80 7 • •110 7 • • 100 7 • • 80 6 • •110 6 • • 100 6 • • 80 6 • •100 5 • • 80 5 • • 80 5 • •80 5 • • 60 5 • • 60 5 • •70 6 60 6 60 6 50 6 50 6 40 660 5 50 5 50 4 40 4 50 4 40 450 5 • • 40 4 • • 40 4 • •50 5 • • 50 4 • • 40 4 • •60 5 • • 50 5 • • 50 5 • •30 4 • • 25 4 • • 25 4 • •60 5 50 5 50 5 40 5 50 5 40 560 4 • • 50 4 • • 50 4 • •60 4 • • 50 4 • • 50 4 • •140 8 70 7 130 8 60 7 120 8 60 6100 8 70 7 90 8 60 7 80 8 60 6

• • • • • • • • • • • •100 6 • • 90 6 • • 80 6 • •90 8 90 8 80 8 80 8 70 8 70 8

• • • • • • • • • • • •140 8 70 8 130 8 60 8 120 8 60 7100 8 70 8 90 8 60 8 80 8 65 8

• • • • • • • • • • • •120 8 • • 110 8 • • 100 8 • •

• • • • • • • • • • • •• • • • • • • • • • • •

GUHRINGGUIDE


TypeSurfacefinish

Cooling

Gu

h.

no. DIN6537 HA

G.S. HA

Carbide

Feed columnno.

vcm/min



TypeSurfacefinish

Cooling

Gu

h.

no. G.S.

Solid carbide Solid carbide Solid carbide

VR-Code

VR-Code

VR-Code

VR-Code

VR-Code

VR-Code

conventional cooling

coolant pressuremin. 40 bar





with tip coating with tip coating with tip coating

gM 300 The MoDulaR Tooling SySTeM

• to ISO 12 164, DIN 69 893 and DIN 69 871• for transfer lines, machining centers and lathes

The Guhring Ratio drill with plain shank and the GM 300 system are the ideal partners for a cost-efficient and highly accurate production:

• the Ratio drill as well as the GM 300 system are specifically adapted to the current trends in production technology and are ideally suited for high speed machining (HSC), dry machining as well as minimal quantity lubrication MQL.

• the two programs perfectly satis-fy the requirements for machining centres, flexible production sys-tems as well as transfer lines and combined with each other achieve optimal results.

• the high precision provided by the GM 300 tool holder is of additional benefit to the above average posi-tional and dimensional accuracy of the Ratio drills.

HT 800 WP - RT 800 WP - LT 800 WP

The interchangeable insert drilling system T 800 is the intelligent so-lution for efficiently and economically machining large and deep ho-les applying the following types:

HT 800 WP: • Tool holders for drilling depths up to 3 x D, 5 x D and 7xD• interchangeable inserts with surfaces bright, TiN or Fire • for bore holes from diameter 11.5 to 25.99 mm

RT 800 WP: • Tool holders for drilling depths up to 3 x D, 5 x D, 7 x D • interchangeable inserts with surfaces bright, TiN or Fire• for bore holes from diameter 16.0 to 40.5 mm

LT 800 WP: • Drilling system for drilling depth up to 12xD • interchangeable inserts with surfaces bright, TiN or Fire• for bore holes from diameter 40.0 to 100.0 mm

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No liability can be accepted for printing errors or technical changes of any kind.Our Conditions of Sale and Terms of Payment apply. Available on request.

Guhring oHGP.O.Box100247·D-72423AlbstadtHerderstr.50-54· D-72458AlbstadtTelephone:+4974 3117-0Fax:+4974 3117-279www.guehring.de

OUR PRODUCT RANGE:

1. DRILLING TOOLSin High Speed Steel and CarbideTwist drillsRatio drillsMicro-precision drillsOilfeeddrillsSublanddrillsCentredrillsCoredrillsGundrillsDrillingsystemswithinterchangeableinserts

2. THREAD CUTTING TOOLSin High Speed Steel and Carbide

Machine taps and fluteless tapsOilfeedtapsandoilfeedflutelesstapsHandtapsThread milling cuttersDies

3. MILLING CUTTERSin High Speed Steel and Carbide

Ratio end millsSlotdrillsEndmillsRadius profile cuttersHardprofilecuttersDiesinkingcutters

4. REAMING TOOLSin High Speed Steel and Carbide

NCmachinechuckingreamersMachine and machine chucking reamersTaper pin reamers Handreamers

5. COUNTERSINKING TOOLSin High Speed Steel and Carbide

Countersinks,counterboresandspotfacersShortcounterbores,backspotfacersDe-burringtools

6. CUTTING TOOLS in ultra-hard materialsFacemillingcutterPF1000CermetandceramictoolsPCD-andPCB-tippedtools

7. COATED TOOLSA-tools,TiAlN-coatedSuperA-tools,AlTiN-coatedC-tools,TiCN-coatedF-tools,FIRE-coated(allround)P-tools,AlCrNN-coatedS-tools,TiN-coated(allround)M-tools,MolyGlide-coated

8. MODULAR TOOLING SYSTEMSTooling system GM 300Tool holders, clamping systems and accessories to ISO12164,DIN69893andDIN69871fortransferlines, machining and turning centres

Flexible tooling system GE 100a tooling system for the combined machining operations facing, chamfering, boring, centering etc.

ISO indexable inserts, short clamping holders and KV 400 cartridges

9. SPECIAL TOOLSto sketch or drawing, the more complex, the better

10. CARBIDESfor precision cutting tools

11. CARBIDE SPECIAL PARTSfor the forming, machining and wearprotection industry Coldheadingdies,ribbedrolls,dies,mandrels,drawing dies, gear cutters, etc.

12. TOOL RESTORATION SERVICERe-grinding, re-coating, tool management

the ratio drill range - guhring.es · the safety regulations of the vdi guidelines must be...

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