1.Products name : ERG tapping collet
2. Material: High quality spring steel 65Mn
3.Hardness : HRC44-48
4.Accuracy : 0.015mm
5.Type : ER16G ER20G ER25G ER32G ER40G
6.Brand : HT-TOOLS
7.Package : Plastic box paper box
8.Mini order quantity : 10pcs