... TypeServo motorSpindle1.5KW/1.5KW/1.5KW/2.2KW liquid-cooled with 24,000rpm,VFDMax. Working speed10,000mm/minCollets Type3.175mm ... high speed, low noise and long service life.·Brushless water cooled spindle with 24,000rpm,VFD, rotated steadily.·High-power, deeply incise ... .·Software update timely.·Connect with all kinds of 3D engraving software.·DSP control system ...