In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of

In a drilling process, the metal is removed by both shearing & extrusi

1.	In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of
A.	stainless steel
B.	mild steel
C.	high speed steel
D.	high carbon steel
Answer» D. high carbon steel

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In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of

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