QC Tension & Compression Tap Chucks

In applications where there is backlash in the machine or timing to pitch issues, Tension and Compression holders will compensate to allow the tap to cut freely without pressure from the machine tool.

Programming should be 95-98% of Pitch of in-feed, 100% of Pitch on reverse. This will allow the tap to pull out on the springs of the holder while tapping the hole and spring back when exiting the hole to prevent thread pulling and double cutting.

Rigid Adapters vs. Torque Control

Torque control adapters have a user-adjustable clutch. The clutch is set for mild steel at the factory. Torque control adapters will clutch if there are hard spots in the material, the drilled hole is not deep enough, or the tap has become dull and is not cutting properly. Due to the sensitivity of the clutch, the adapter will clutch before the tap is fully dull.

For CNC machine tools, we recommend RA rigid adapters with TC tension and compression holders because the drilled hole is controlled by the same setup. However, there is always a chance of tap breakage if the tap becomes too dull in an RA adapter.