Arm Length: 6' Column Diameter: 17" Spindle Speeds: 14-1700 RPM (36 Steps) Spindle Feeds: .004 - .125 IPR Tap Leads: 8 - 27 TPI Spindle Stroke: 18" Spindle Diameter: 4-3/16" Spindle Motor: 20 HP Spindle Taper: No. 6 M.T. Spindle Radius (Min. / Max.): 23-3/8" / 83-5/8" Spindle to Base (Min. / Max.): 15" / 72" Power Column Clamping Power Head Traverse Power Head Clamping Dimensions & Weight: