1" Shell Mill Holder, CAT40, 2" Gage Length

For shell and face mills with a 1" bore, 1/2"-20 mounting thread. CAT40 taper to ANSI B5.50. Balanced to G2.5 at 25,000 RPM, runout within 0.005 mm. 5/8"-11 retention knob thread. Retention knob sold separately.