1.Material: 65Mn Steel 

2.Run out: 0.008mm 

3. HRC: 55-60

4. Used for boring, milling, drilling, tapping, grinding and engraving operation, etc. 

5.We can supply any other type collets you need.


1，The handle, the internal use of the original gear transmission mode; and conventional pull handle compared, without using a nut, tool handling more conven
2，High precision 0.005MM. Is the only high-end engraving and milling equipment preferred.
3，In addition to the above table column specifications, a variety of other specifications are limited to the layout, not one one listed, if necessary, welcome to contact.