5pcs ER16 ER20 Spring Collet 6.5-13mm Collet Chuck for CNC Milling Lathe Tool

Description:  5pcs / set ER16 + ER20 high precision spring chuck.     Specification:  Material: Spring Steel.  Size: app.25x38mm/0.98x1.50in.  ER16 Collet: 6.5mm.  ER16 Collet: 8mm.  ER20 Collet: 6.5mm.  ER20 Collet: 8mm.  ER20 Collet: 13mm.  Quantity: 5pcs/set.     Features:  Made of high quality steel material, durable and practical.  Special angled grooves add rigidity.  Protect the insert holder from contamination.  Better overall balance of the tool holder assembly.  Use any standard ER chuck chuck for coolant tool applications.  Applicable to: boring, milling, drilling, tapping, engraving, CNC, spindle machine tools, etc.  Spring Collet only, other accessories demo in the picture is not included.     Note:  Please allow a bit error due to manual measurement. pls make sure you do not mind before you bid.  Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!     Package included:  5 x Spring Collet