1.Products name : ERC  sealed collets

2. Material: High quality spring steel 65Mn

3.Hardness : HRC44-48

4.Accuracy : 0.015mm

5.Type : ER16C ER20C ER25C ER32C ER40C 

6.Brand : HT-TOOLS

7.Package : Plastic box   paper box 

8.Mini order quantity : 10pcs