This is ER20 High Quality Collet with 6mm Hole.
- Made from Alloy spring steel and fully hardened
- All critical collet surfaces are precision ground for accurate fit
- Works in all ER20 Collet Chucks
- ER20 collet has a full 6mm range of collapse while maintaining full accuracy
- ER20 collet has a range : 5.5mm to 6.0mm