is a center which grips the workpiece strongly enough to drive it without the use of a dog. They often use hydraulic or spring-loaded teeth that bite into the end of workpieces. When supporting a workpiece only with centers, the entire outside of the workpiece may be machined in one setup.

Tooling

Turning tooling usually cuts with a single point, as opposed to a drill bit or end mill which cut with several sharp edges. The angles around the sharp point are important,

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