ER40 Collet 12Pcs Spring Collets Chuck Set 1/8″- 1-1/8″ Precision For Lathe
Specification: 12PC High Precision ER40 Collets Set Common Popular Size 1/8, 3/16, 1/4″; 5/16″; 3/8″; 1/2″; 5/8″; 3/4″, 7/8″, 1″, 1-1/16, 1-1/8″. Made of High Grade Carbon Steel Accuracy: 0.0003″ or 5um Ground roughness is Ra0.4 Microns, plus overall fine polish Running True at High Speed turning Fit for all R8, morse tapper, CAT BT CNC ER40 chuck or holder Features: Special angled slots increase rigidity Better overall balance of tool holder assembly Protects tool holder from contaminants .