k-gualda スプリングコレット ER20 SUJ2 (7mm-8mm)

Can be used on a wide range of machine tools including milling machines, machining centers, NC lathes, tool grinders, drilling machines, etc. Adopts an ideal taper angle of 8°. The eccentric ring of the collet groove and clamping nut. The tool can be easily removed without the need for a "collet removal tool". Material: High carbon chrome bearing steel (SUJ2 material) Clamping Range is 0.015 T.I.R (0.015 mm) for ER20 (2-3mm to 12-13mm)