Features:_x000D_ _x000D_ Brand and high quality. _x000D_ Solid alloy material, study and durable for usage. _x000D_ Greatly improve the accuracy, save time and convenient for operation. _x000D_ East to install and use. High precision, smooths surface, exquisite design. _x000D_ Practical and useful tool for engraving machine. _x000D_ _x000D_ Specification:_x000D_ Condition: Brand _x000D_ Material: Alloy_x000D_ Color: Black + Red_x000D_ Product Size: Disk Approx. 35 x 19.5mm / 1.4 x 0.77in_x000D_ Package Weight: Approx. 53g_x000D_ _x000D_ Package Included:_x000D_ 1 x Engraving Machine Tool_x000D_ _x000D_ How To Use:_x000D_ Connect the wire of this tool check instrument to the tool connector of your control board of the machine, then the control board's GND connect to the frame of your router (the frame of the router and the spindle must have connections) 1 Brand and high quality 2Solid alloy material, study and durable for usage 3Greatly improve the accuracy, save time and convenient for operation 4East to install and use. High precision, smooths surface, exquisite design 5Practical and useful tool for engraving machine