4236sreaming, tapping. different types of drill bits used for materials such as wood, metal and...

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Page 1: 4236Sreaming, tapping. Different types of drill bits used for materials such as wood, metal and concrete. Cutting speeds and feeds. Portable drilling machine- Electrical, pneumatic,
Page 2: 4236Sreaming, tapping. Different types of drill bits used for materials such as wood, metal and concrete. Cutting speeds and feeds. Portable drilling machine- Electrical, pneumatic,
Page 3: 4236Sreaming, tapping. Different types of drill bits used for materials such as wood, metal and concrete. Cutting speeds and feeds. Portable drilling machine- Electrical, pneumatic,