ER32 Collet Chuck, ISO30, 1.97" Gage Length

Clamping range 2-20 mm metric or ø1/8" - 3/4" inch. DIN 69871 ISO30 taper for ATC that do not use drive keys. Balanced to G2.5 at 25,000 RPM, runout within 0.003 mm. AD coolant through the flange, M12 retention knob thread. Supplied with a UM clamping nut, M40×1.5; collets, wrench and retention knob sold separately.