1.

IF_20MM_HOLE_IS_NEEDED_TO_BE_DRILLED_USING_A_DRILL_HAVING_SEMI_POINT_ANGLE_OF_15_DEGREES._VALUE_OF_COMPULSORY_APPROACH_IN_MM_IS?$

A. 37.2
B. 45.3
C. 87.1
D. 13.3
Answer» B. 45.3


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