1. Wide range of uses The lawn mower blade sharpener is suitable for most electric drills. It can be used for any dull blade to make the blade sharp again. Used for sharpening lawn blades, lawn mowers, rotary tillers, drills, sickle bar cutters, etc. You can sharpen the blades effortlessly, thus shortening your mowing time. 2. Easy to use The lawn mower dull blade sharpener is specially designed to be mounted on an electric drill for sharpening the blades. Just like using a drill, attach the sharpener to the electric drill and it can sharpen the dull blade. (Note: Electric drill is not included) 3. Lawn Mower Dull Blade Sharpener You need to make sure your lawn mower is in condition to improve the efficiency of your lawn mowing tasks. With this amazing lawn mower blade sharpener, you can sharpen your lawn mower blades effortlessly! Reference size: 50x55mm/1.96x2.16 inches each. 4. quality and durable material The lawn mower sharpening tool is made of grindstone, which is durable and suitable for longterm use. Makes the sharpening process easier because it can be done in a few minutes and the only tool you need is an electric drill.