Konmison 1Set Mini CNC Lathe Air Cooled 500W Spindle Motor CNC 0.5KW with 52mm Clamps and 110V Mach3 Power Converter Spindle + 13pcs ER11 Air Cooled Spindle - 110VAC MACH3 - Analog Input; Torque: 5000G/CM High precision spindle run out 0.01-0.03; Speed: Up to idle up to 11000 rev / min Operating voltage: 100VDC; Power: 500W; Spindle diameter: 52mm Applied to Lathes, Mills, Car Hoists, Pumps and Conveyors, etc. Stiving for 100% service satisfactory. Any issue please contact us, we would always try our best to help you.