Grinding head diameter: 3.175mm. Location Cover Dimensions: 60 x 42 mm.Easy screw-on mounting on rotary tool. It is safe when you use the Dremel with it.Used for attachment of drill bit, milling machine and others. Very easy to use and maintain.Large window provides excellent visibility for better control. Allows precise cutting in wood, metal, PVC, etc.Suitable for wood, plastic and other soft materials, carving, engraving, hollowing, chamfering, slot, bore, etc. Description:Features:Top quality product.Materials: steel and plastic.Color: black and silver.Diameter of the grinding head: approximately 3.175 mm.Dimensions of the cover: approximately 60 x 42 mm.Cover of position for fixing drill grinders, milling machines, tools, grinders with tool with screws, can be directly on the card holder in rotary grinders, and positioning.Use: suitable for wood, plastics and other soft materials, carving, engraving, hollowing, chamfering, slotting, boring, etc.Steps of installation:Screw the nut and install the wood cutter.Install the cutter locatorSet the cutter to the same plane as the locator, and n 'don't forget to adjust the balanceAdjust the depth according to demandContent:1 location cover.4 drill bits.6 wood cutters.