... board, artificial marble, copper, aluminum, and plastic.It mainly used for escutcheons, nameplate, seal, architecture model, artwork, adornment, industrial mould ... : YH-3030Diameter of knife: 3.175mm (6mm)Processing dimension: 300* 300* 45mm (60mm) Dictate format: HPGL, deflate G code Engraving speed ... 70KGExterior dimension: 550mm*550mm*600mmPacking: Wooden caseSample Display: Desktop CNC Router 3030