SHARK TOOLS 67-814-408 ER40 ER Spring Collet, Size Range: .336"" - .375"" (3/8""
All of the Precision ER Collets and Sets from Shark Tools are Perfect for the Clamping of Your Tool Parts. Also, the collet angle provided is 8 degrees. Moreover, they are readily compatible with collet series such as RD, ESX, DR, BR, and AR.