Chisels for metal cutting are
A) Hardened in the middle
B) Hardened at cutting edge
C) Hardened all over
D) Hardened at random
E) Never hardened
Correct Answer:
Verified
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A)Copper aluminium alloy
B)Copper-nickel alloy
C)Copper-zinc alloy
D)Copper-tin alloy
E)Copper-lead
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A)Toys
B)Instruments
C)Low load applications
D)Low
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