Collet /Milling Chuck ER-11/ER-16/ER-20/ER-25/ER-32/ER-40 from Jinjie China

1)    Made of high quanlity spring steel

2)    Powerful clamping ability with high precision and stability

3)    Used for drilling, boring, milling, tapping, and so on.

4)    Adapted for DIN6499B

Matarial: 65MN 

Accuracy: within 0.015