Tap holder

Illustration of Tap holder

By using a floating chuck that allows axial telescoping, one can compensate for the pulling force of the threading tool.

When threading, the tool is subjected to a pulling force, so you use floating chucks that can telescope. This avoids tool breakage or deformed threads if the machine's control system is not accurate enough to follow along.
Chip evacuation problems are a common cause of tool failure. In addition to using a floating chuck, use torque monitoring to monitor the cutting forces and stopping production before the tap fails.
Spiral shaped outer or inner grooves are usually used for fitting
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