Chuck type: Standard ER32 collet 3~20mm (Hollow shaft) 11 pcs complete set ER32 collet: （3mm,4mm,5mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm） Center height: 65MM Hollow shaft diameter: 21MM Angle: 0.3 degree / step Reduction ratio: 6:1 (synchronous belt deceleration mode) Step motor: 57 phase stepper motor (two-phase 4 wire current 3A ) Size: length 180MM* width 168MM*115MM Motor: 500RPM; Axis: 80RPM.
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