Multi-Lock Mill ChuckModel ID：BT/C
- Six groove inner dia. to prevent slide and enhance clamping force.
- Needle bearings make sure taper surface less contact friction.
- Water and dust proof and such design does not over tighten.
- Seal design to eliminate dust and chips
- Precision balancing is applied for G6.3, 8000 RPM
- Balancing grade and rev. can be custom made for additional charge.