... to ensure accuracy3) Subdivision stepper motor with excellent performance, quick speed, stable operation, and large cutting movement to ensure ... ballscrew for x,y,z axis XYZ Guide rail X,Y,Z Round shaft Option: Square linear rail for Y, round rail for X ... or calling user friendly english manual and Video CD for manchine using and manitenacing Spare partsQtyUnitDescriptioncutter12pcs 90x32mm Conical ...