The whole body is made of aluminum, long service life. Good tool for engraving machine inverted board bakelite chamfering and trimming machine. Material: aluminum alloy CNC. Screw hole distance: 62x70mm/56x45mm. Color: silver / gold. Please Make sure it’s 100% right. Please leave note for your special request e. All package need to. Please take care it. But the items must be back in factory condition. If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.