ER25 Collet Chuck, BT30, 2.76" Gage Length

Clamping range 2-16 mm metric or ø1/8" - 5/8" inch. JIS B 6339 BT30 taper. Balanced to G2.5 at 25,000 RPM, runout within 0.003 mm. AD coolant through the flange, M12×1.75 retention knob thread. Supplied with a UM clamping nut, M32×1.5; collets, wrench and retention knob sold separately.