The angle formed by the leading edge of the land with a plane having the axis of the drill, is called

A. Helix or rake angle

B. Point angle

C. Chisel edge angle

D. Lip clearance angle

Answer: Option A

Solution(By Examveda Team)

The angle formed by the leading edge of the land with a plane having the axis of the drill, is called Helix or rake angle The rake angle is the angle of the surface of a cutting tool tip over which the removed chips flow. The rake angle is the angle between the front or cutting face of the tool and a line perpendicular to the workpiece