ER / C Watertight collet (internal cooling type)
1. Material: SUJ2; 42CrMo;
2. Hardness: 46-50HRC;
3. The use of groove differences, to achieve the surrounding water, only the center of the water function;
4 can withstand water pressure 7Mpa;
5. Non-standard hole can be customized;
6.20 slot design to increase the number of elastic groove, shrinkage of 0.5mm, clamping force increases to increase the sealing;
7. Provide two kinds of appearance: light decoration or coating treatment;