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Mastering the Lathe and Milling Machine
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Why is a four-jaw independent chuck often preferred over a three-jaw self-centering scroll chuck for high-precision lathe work?
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50-50
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A
It allows the machinist to dial out runout to near-zero and hold irregular shapes.
B
It grips the workpiece automatically without requiring manual alignment.
C
It has a higher maximum RPM rating due to its symmetrical design.
D
It eliminates the need for a tailstock center on long workpieces.
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