ER Spring Collet CNC Holder ER20 2- 13mm Engraving Machine Milling Lathe Spindle
▷ Product Description ◁
▶ Model:High precision chuck
▶ Material: tungsten steel▶ Specification:ER20▶Size: 2mm-13mm
▶Height accuracy: within 0.007mm
▶Features: 65 manganese steel material, not easy to deform, high hardness and strong elasticity