The process of making diamond impressions on work piece
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champfering
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knurling
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turning
-
shaping
B
Correct answer
Explanation
Knurling is the machining process that creates diamond-shaped patterns or impressions on a workpiece surface. This is done using a knurling tool with rotating wheels that imprint the pattern, providing improved grip for hand tools or decorative texture. The other options are different machining processes.