... -24000rpm w/best frequency inverter Drive mechanism German imported ballscrew for x,y,z axis XYZ Guide rail X,Y,Z ... Round shaft Option: Square linear rail for Y, round rail for X,Z Motion positioning accuracy ± 0.03/300mm ... support by email or calling user friendly english manual and Video CD for manchine using and manitenacing Spare partsQtyUnitDescriptioncutter12pcs 90x32mm Conical Carbide ...