Feature:1. Made of chrome-molybdenum alloy steel material with high hardness2. The long handle is suitable for deep hole processing, which can solve the need for extended depth processing3. The nuts can be tightened directly, with high rigidity and strong clamping force4. Variety of models to meet the needs of different processing scenarios5. Suitable for ER16M chuck, which is convenient to installSpecification:Item Type: Collet Chuck Holder Model: ER16M-100LMaterial: Chrome-molybdenum alloy steelClamping Rod Diameter: 12, 16, 20, 25mmApplicable Chuck Model: ER16MHandle Length: Approx. 100mm / 3.9inOptional Style: C12, C16, C20, C25.Package List:1 x Collet Chuck Holder Note:1. The color of head is random2. New‑style and old‑style are shipped randomly