General Studies · Workshop Technology
What is the primary purpose of providing a Clearance Angle behind the cutting edge in a twist drill bit?
- 1To help in the easy removal of chips from the hole.
- 2To increase the cutting speed and torque capacity.
- 3To prevent the friction or rubbing of the tool body behind the cutting edge.✓
- 4To make the drill point suitable exclusively for soft materials.
Correct answer
To prevent the friction or rubbing of the tool body behind the cutting edge.
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