Grinder for Electric Drill with 2 Types of Grinding Wheels Grinding Wheel Outer Diameter: 70mm * A simple grinder kit that can be attached to an electric drill This is a convenient attachment set that allows you to use an electric drill as a grinder. It is useful for metalworking, deburring, chamfering, sharpening blades, and more. The included grinding wheels are two types: coarse (60 grit) and medium (80 grit). You can use them according to your purpose, greatly expanding the range of your DIY work. Features of the Grinding Wheels [Blue Grinding Wheel (60 grit)] A 60-grit coarse grinding wheel, ideal for roughing, deburring, and shaping iron materials. Recommended for those who prioritize work efficiency. [Pink Grinding Wheel (80 grit)] An 80-grit medium grinding wheel, ideal for smoothing after roughing and chamfering. You can get a relatively clean finish. * Grinding Wheel Outer Diameter: 70mm Main Body Specifications ・Clamp diameter of electric drill that can be attached: 40-44mm ・Base dimensions: 110mm x 87mm ・Shaft length: approx. 64mm ・Total weight: approx. 371g ・Grinding wheel outer diameter: 70mm ・Material: Steel (body), grinding wheel (abrasive material) Set Contents ・Main body set (base, holder, shaft) ・Blue grinding wheel (60 grit) x 1 ・Pink grinding wheel (80 grit) x 1 ・Fixing nut ・Fixing washer How to Use 1. Fix your electric drill to the holder. 2. Attach the included grinding wheel to the shaft and secure it with a nut. 3. Rotate the electric drill and use it as a grinder. Examples of Use ・Deburring metal ・Grinding iron materials ・Rough shaping ・Sharpening blades and tools ・General DIY metalworking [Possible Compatible Electric Drill Manufacturers] ・Makita ・Hitachi Koki / HIKOKI ・RYOBI / Kyocera ・BOSCH ・Black+Decker ・IRIS OHYAMA ・YAMAZEN ・EARTH MAN / Takagi ・KIMO ・WORX ・Other general-purpose electric drills (models with a diameter of 40-44mm) * Even with the above manufacturers, the body diameter may vary depending on the model, so be sure to check the size.