1.Er collet material:65Mn 2.Power clamping ability, ... varouis machinery accessories such as Er collet,Sealed collet,tap collet,R8 collet,5c collet,OZ collet,tool holder, vise etc.1)Runout ... of our ER collet are within 0.010mm; ... , ER16, ER20, ER25, ER32, ER40 and ER50 collet 3)Made of high quality steel:65Mn 4)Packing:inner ...