1) TK-1212-2 Advertising CNC Router 2) Double Heads 3)High-performance driver 4) Water cooling ... Metal (Aluminum, Cooper).Product Specification: Machine ModelTK-1212-2 Advertising CNC Router MachineXYZ Guide RailHIWIN Square RailX,Y TransmissionRack GearsSpindle motor3.0 ... /minWorking VoltageAC220V 50HZ/60HZBlade Diameter.3.175mm,4mm,6mm(or 8mm,12mm,12.7mm)Table Size720*1140(mm)X,Y,Z ...