Mechanical collet chuck ER 32-5X optimized for 5- and multi-sided machining of round workpieces . ER collets are the most widely used clamping devices for the safe holding of round or cylindrical workpieces. The cavity opening diameter of this collet is 32 mm. Features: - Maximum access - Integrated workpiece stop - Universally mountable - Material: steel - Finish: surface hardened, black-finished