Minimize stress on taps to produce clean, accurate threads. These holders work with CNC lathes and mills that don't support rigid tapping. You can mount them directly to your machine's straight spindle or use another tool holder, such as an end mill holder. Also called tension and compression tap holders, they compress as the tap enters material and extend as it backs out, compensating for small spindle and feed rate mismatches. Not only does this protect the tap but also the threads you just cut. They’re often used when tapping through and blind holes with spiral-point and spiral-flute taps.

Their hardened steel shank resists wear. It’s also precision ground for a secure fit that minimizes runout in your machine spindle.

Use these holders with tang-drive quick-change tap collets (also known as Bilz-style tap adapters) to swap taps in seconds and limit machine downtime. They are not compatible with ball-drive quick-change tap collets.

For the best performance, select a quick-change collet size that places your tap near the middle of the listed tap size range.