1/4" Shrink Fit Chuck, CAT40, 3.15" Gage Length

For 1/4" carbide tool shanks, h6. CAT40 taper to ANSI B5.50, 4.5° shrink fit nose. Balanced to G2.5 at 25,000 RPM, runout within 0.003 mm. AD coolant through the flange, 5/8"-11 retention knob thread. A shrink fit machine is required to change tools; tools and retention knob sold separately.