Features: 
- Made of high quality of steel.
- Unique 8 degree taper design affords highest gripping power.
- double angle for extreme concentricity.
- 16 jaws giving powerful gripping and parallel clamping. 
- A unique self-releasing system is built into the collet and clamping nut ti eliminate cutting tools sticking in the collets.

- Set packed in wooden case, plastic case and aluminium case