*/*_In drilling operation, the metal is removed by?

1.	/_In drilling operation, the metal is removed by?
A.	Shearing
B.	Extrusion
C.	Shearing and extrusion
D.	Shearing and compression
Answer» D. Shearing and compression

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*/*_In drilling operation, the metal is removed by?

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/_In drilling operation, the metal is removed by?