1) TK-1212-2 Advertising CNC Router 2) Double Heads 3)High-performance ... be applicable for Metal (Aluminum, Cooper).Product Specification: Machine ModelTK-1212-2 Advertising CNC Router MachineXYZ Guide RailHIWIN Square RailX,Y ... manual friendly and can refer to the Video CD TK-1212-2 Advertising CNC Router Machine