7:24 Drill Chuck Arbors
1. High-quality elastic steel material with long use time.
2. Type: 7:24 Drill Chuck Arbors
3. ISO30-J0, ISO30-J2, ISO40-J3
4. Suitable Facing Cutter:13mm-60mm
5. The precision little than 0.005mm with a balance of 8000rpm. Higher precision also can be made by your demand.
6. Holder hardness:48-55HRC