Concept drill
point angle
GATE Mechanical Engineering · Machine Tools · 1988-2012
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All concepts →2012 PYQ
In a single pass drilling operation, a through hole of $$15$$ $$mm$$ diameter is to be drilled in a steel plate of $$50$$ $$mm$$ thickness. Drill spindle speed is $$500$$ $$rpm,$$...
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1988 PYQ
In twist drills ......... (small/large) point angle and ........ (small/large) helix angle are provided for drilling soft, low strength steel.
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