ER spring collet WITH STANDARD DIN6499B
1.High accuracy
2.Made of special elastic steel material:65Mn
3.Hardness:HRC44~480
4.If no special requirement.we would supply to you according to A grade .If you require AA average level grade,the price would be advanced.
5.Average level:0.015mm, Aclass:0.01mm, Aaclass:0.005mm
