Material: metal .It is suitable for machining wood, acrylic, porcelain, plastic, aluminum, iron, steel and other materialsWiring : The white receives the control card to the blades, and the black receives the control card G terminalColor: red + blackType: Engraving Machine Tool Setting BlockDiameter: (.) 40mmHeight: (.) 20mmUsage: According to the wiring is properly connected and control panel for the cutter, clip and connected to the ground of the control panel ( clip can be caught in the spindle, must that the spindle and ground wire is connected to main board), when the cutter device of cutting tool, the cutting process is complete.Notes: When you are connected to the cutter block, the device ( do not the spindle motor). 't be too to clip the clip on the spindle, to touches the face of the cutter with the clip, observe whether the Z axises has a reaction to the cutter, confirm that there is no problem, then implement the automatic cutter.Included: 1 x Engraving Machine Tool Setting Block Auto InstrumentOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.