- ISO30 45° Pull Stud Retention knobs
- Works on all ISO30 machines
- All critical surfaces precision ground
- Made from alloy steel hardened to 54 - 56rc
- Thru twice heat treatment of each pull stud
- Angle degree have 45,60 and 90 available
- Concentricity is less than .0005 at collet face
- Coolant available
- Rear thread for pull stud is M12X1.75
- Oxide black