Feature:1. The collet chuck holder possesses strong clamping force, high rigidity and low noise.2. Heat treatment and cold drawing hardening endow the product with high strength, certain flexibility and plasticity.3. Widely used for milling, drilling, tapping, engraving, CNC, the half‑cone angle design of the spindle machine collet 4, with more clamping force.4. After quenching processing and with fine workmanship, the product is strong and durable.5. The collet chuck holder possesses good contact performance, ensuring stable working.Specification:Item Type: Collet Chuck HolderMaterial: 65 MnAccuracy: 0.005Hardness:> HRC48-55°Carburizing Depth: >0.8mmSurface Roughness: >0.8mmDiameter: Approx. 3mm / 0.12inUses: Widely Used For Milling, Drilling, Tapping, Engraving, CNC, The Half-Cone Angle Design Of The Spindle Machine Collet 4, With More Clamping Force Package List:1 xCollet Chuck Holder