- 7pcs/set: 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", & 7/8".
- Made of high quality spring steel
- Hardened and precision ground
- Collet end OD & ID threaded
- Accuracy: 0.0005" TIR
- The collets were developed primarily for work holding, unlike most other machine collet systems
- Each collet has an external thread at the rear for drawing the collet closed and so work pieces may pass right through the collet and chuck.
- Each collet also has an internal thread for workpiece locating.
- The collets are to hold hex stock.