Answer: stone – bronze – iron – steel
Answer: stone – bronze – iron – steel
Answer: Cubic Boron Nitride (CBN)
Answer: Has much influnce on punch load and it decreases
Answer: Does not influnce the punch load much
Answer: Cemented carbides
Answer: 4
Answer: Cutting speed
Answer: Sixteen times
Answer: 10 mm
Answer: 36 m/min
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