Collet ER32 range 3-2 d bore diameter - 3mm D outer diameter of the collet - 32mm L height - 40mm Installation of the sleeve fig. A disassembly fig. C Fig B indicates a properly mounted ER bushing Features: The collet, size ER32,is a holding element that has a cylindrical shank that forms a flange around the workpiece being held. It can be used to hold both the workpiece and the lathe tool. It is used in milling, drilling, threading and engraving operations. The cages, due to their ability to be clamped in many tools including drills, cutters, have a wide range of applications. ER collets are available in various sizes.