Multi-Lock Collet Chuck
1, material: 40Cr, 20CrMnTi
2, TIR within 0.01
3, Hardness: 52-56HRC
4, Size: BT30, BT40, BT50 -C32, C40
5, balancing: G6.3/12000RPM, G2.5/25000RPM
6, Water coolant: AD, AD+B, B type