Features 1. Premium Durability and Reliability: Constructed from high-strength, hardened materials, this ER20 collet block boasts a robust structure ensuring long-lasting durability and reliability. Ideal for heavy-duty machining environments that demand precision. 2. Precision Clamping for Spindle Motors: Our top-quality ER20 collet block is specifically designed for spindle motor shaft clamping, delivering the exactitude needed for high-quality machining tasks. Enhance your machine's performance with this essential accessory. 3. Efficient and Secure Clamping Mechanism: Equipped with a spiral linear thread, this collet block offers easy clamping and rapid tool changes without compromising on a strong and secure grip, optimizing operational efficiency in all industrial settings. 4. Flawless Finish and High-Performance Stability: Experience smooth with a from imperfections and scratches. This collet block's superior finish ensures stable performance, making it a trustworthy choice for professionals. 5. Versatile Tool Compatibility: Perfectly suited for an array of machines including lathes, drilling machines, milling machines, and boring machines. This collet block can securely clamp tools like taps, drills, and milling cutters, expanding your machining capabilities and providing utmost flexibility. 1. Made of premium material, high strength and hardness, strong structure, in use. 2. High quality ER20 collet block for spindle motor shaft clamping. 3. Spiral linear thread, more convenient clamping, faster replacement, high clamping force. 4. Smooth , no scratches, stable performance. 5. Suitable for lathes, drilling machines, milling machines, boring machines, can clamp tap, drill, milling cutter. Specification: Features: Made of premium material, high strength and hardness, strong structure, in use. High quality ER20 collet block for spindle motor shaft clamping. Spiral linear thread, more convenient clamping, faster replacement, high clamping force. Smooth , no scratches, stable performance. Suitable for lathes, drilling machines, milling machines, boring machines, can clamp tap, drill, milling cutter. Specification: Model: C25-ER20-50L Nut type: ER20A Body length: 60mm Axle hole: 6mm, 8mm, 10mm, 12mm, 16mm (Optional) Package List:1 x Collet Chuck Holder Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List