The relief or clearance at the cutting edge of a flat drill varies fr

1.	The relief or clearance at the cutting edge of a flat drill varies from
A.	3° to 8°
B.	20° to 30°
C.	60° to 90°
D.	90° to 120°
Answer» B. 20° to 30°

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The relief or clearance at the cutting edge of a flat drill varies from

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