Drills are usually made of
A) Diamonds
B) Carbon steel
C) High speed steel
D) Carbides
E) High carbon steel
Correct Answer:
Verified
Q46: Choose the incorrect statement. Good machinability results
Q47: The main advantage of using synthetic sand
Q48: In ball bearing steels, chromium percentage is
Q49: A balometer is an element which senses
A)Optical
Q50: The power is transmitted by lead screw
Q52: In order to lower the cutting forces
Q53: Tumber gears are used on lathes to
A)Reduce
Q54: A triple threaded worm is in mesh
Q55: Gun metal is an alloy containing
A)Copper, lead,
Q56: A drilling machine has spindle speeds from
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