Suitable Materials AKG0609 CNC router is the perfect choice for the shop Machinist, Sign maker .Artist, Engraver, Panel maker. or Educational institution who needs an affordable C NC router with 2D& 3D CAD/CAM machining capabilities. The AKG0609 CNC route r is small enough to fit into almost any work space. Equipped with a water tank and rotary attachment, makes it has the ability to engrave on stone and soft metals. It is also suitable for round materials. parameters: AKG0609 CNC Router Steel structure,Taiwan square rails, Mach3 controller, stepper motor, Fuling inverter, 3.0Kw spindle, water tank,4th rotary attachment.