Features Scope of Application: The hex collet is suitable for quick clamping on CNC machines. Convenient to Operate: The hex collet can replace traditional extension rod, its operation is convenient and quick. Function: The through holes allow machining of long parts. Premium Metal Material: The hex collet is made of carbon steel material, high strength, not easy to damage, long service life. Three Styles: The hex collet is available in three styles for choices. Specification: Item Type: Hex Collet Material: Carbon steel Accuracy: 0.015 Color: Silver Packing Size: 7.5 x 5 x 5cm Optional Style: ER25, ER32UM, ER40 Package List: 1 x Hex Collet Note: New‑style and old‑style are shipped randomly Package List 1 x Hex Collet