THE MARKING PLATE MADE OF- CAST IRON

SURFACE PLATE MADE OF-HARDENED STEEL, GRANITE STONE, CAST IRON THE DIFFERENCE BETWEEN SURFACE PLATE AND MARKING PLATE IS- SURFACE PLATE IS MORE PRECEOUS PRUSIAN BLUE IS APPLIED ON THE SURFACE PLATE DUE TO- CLEAR SIGHT

A GROOVE IS MADE INFRONT END OF THE BASE IN THE SURFACE GAUGE BECAUSE- TO GIVE SPACE TO THE SPINDLE WHEN MARKING BELOW THE BASE OF THE SURFACE GAUGE SURFACE PLATE MADE OF CAST IRON DUE TO- EASY TO CAST AND MACHINING, CHEAP, LESS WEAR AND TEAR MARKING MEDIA ARE-CHALK, PRUSSIAN BLUE, COPPER SULPHATE,CELLULOSE LACQUER UNIVERSAL SURFACE GAUGE HAVE ADVANTAGE OF- CAN SET AT ANY ANGLE,FINE ADJUSTMENT, USE ON CYLINDRICAL SURFACE V BLOCK USE FOR-MARKING, SETTING UP JOB ON THE MACHINE, ON CYLINDRICAL JOB GRANITE SURFACE PLATE ADVANTAGE OF- IT IS DENSE AND STABLE MATERIAL, RETAINS HIGH ACCURACY, RUST PROOF FOR DRAWING LARGE CIRCLE – TRAMMEL USED

FOR BLACHSMITH OPERATION – SHRINK RULE USED VEE BLOCK HAVING ANGLE OF- 900

POINT ANGLE OF SCRIBER IS- 12-150

POINT ANGLE OF CENTRE PUNCH IS- 900

DURING MARKING THE REFERENCE SURFACE IS PROVIDED BY- MARKING OF TABLE SURFACE THE SLOTS PROVIDED ON ANGLE PLATE FOR – ACCOMODATING BOLTS

V BLOCKS ARE AVAINABLE IN- GRADE A AND GRADE B DIVIDER IS USED FOR- SCRIBING CIRCLE,SCRIBING ARC, TRANSFERRING AND STEPPING OFF DISTANCE SCRIBER IS MADE OF- HIGH CARBON STEEL

GUIDE PIN IS A PART OF- UNIVERSAL SURFACE GAUGE

SPIRIT LEVEL ATTATCHED TO THE PROTECTOR HEAD FOR- SETTING ANGLE WITH HORIZONTAL PLANE

SURFACE GAUGE USED FOR – SCRIBING LINES PARALLEL TO DATUM SURFACE FOR HOLDING CIRCULAR JOBS – V BLOCK USED

FOR SCRIBING LINES PARALLEL TO DATUM SURFACE – SURFACE GAUGE IS USED FOR MARKING AND CHECKING 450 AND 90 0 SQUARE HEAD USED

FOR MARKING AND MEASURING ANGLE WITHIN AN ACCURACY OF 10 – PROTECTOR HEAD USED FOR MARKING WIDE PUNCH MARK TO HAVE A GOOD SEAT TO THE DRILL POINT –CENTRE PUNCH USED PUNCHING WITNESS MARK IS GIVEN BY- DOT PUNCH

FOR MARKING LIGHT PUNCH MARKTO GIVE PROPER SEAT TO THE DRIVER LEG AND PUNCHING SOFT METAL- PRICK PUNCH USED

PRUSSIAN BLUE –DRIED SLOWLY BUT GIVE CLEAR MARK ON ROUGH SURFACE , CASTING AND FORGING –WHITE WASH USED

COPPER SULPHATE STICKS TO THE FINISH SURFACE WELL FOR MEASURING DEPTH OF SLOT- SQUARE HEAD USED

MARKING OR MEASURING ANY ANGLE- PROTECTOR HEAD USED

HAND TOOLS WHAT INDICATES SIZE OF SCREWDRIVER- LENGTH OF SHANK

WHT TYPE OF WRENCH IS USED TO KNOW THE AMOUNT OF THE FORCE TO BE APPLIED TO THE NUT OR THE BOLT- TORQUE WRENCH

THE DIFFERENCE BETWEEN ADJUSTABLE WRENCH AND MONKEY WRENCH IS-i) ADJUSTABLE WRENCH HAS STRONGER GRIP ii) OPENING OF THE MONKEY IS LARGER THE SHAPE OF EYE HOLE OF THE HAMMER IS- OVAL SHAPE AND TAPERED FROM BOTH SIDE TO THE MIDDLE THE BEST HAMMER CAN MADE BY-DROP FORGING

THE JAWS OF VICE MADE OF- GREY CAST IRON SIZE OF BENCH VICE INDICATED BY- WIDTH OF THE JAW

THE JAW OF BENCH VICE IS SERRATED DUE TO- GRIPPING

THE EYE HOLE OF THE HAMMER IS TAPER DUE TO- PREVENTING HEAD FROM FLYING

USUALLY HAMMER HANDLE IS MADE OF WOOD FOR- SHOCK ABSORBATION THE HAMMER HANDLE SHOULD GRIP AT ITS FURTHER END DUE TO-PROPER LEVERAGE AND HEAVY FORCE BLOW THE MAJOR DIFFRENCE BETWEEN BLOW OF FACE AND PEEN HAMMER IS- BLOW OF THE PEEN IS MORE EFFECTIVE IN ONE DIRECTION AND BLOW OF THE FACE SPREAD METAL UNIFORMLY

THE HAMMER HANDLE MUST SET SQUARE WITH THE HAMMER HEAD DUE TO- HEAT ON THE AIMED POINT EFFECTIVELY

THE MOVABLE JAW OF A LEG VICE HAS OVAL SHAPE HOLE – TO PROVIDE SUFFICIENT SPACE FOR CURVATURE MOVEMENT OF THE MOVABLE JAW