1. Easy to Use Blade Sharpener for Drill: The lawn mower dull blade sharpener is specially designed to be installed on a power drill to sharpen lawn mower blades. Just like a drill, attach the sharpener to your drill and install in just 10 seconds to sharpen any dull blade. (Note: Electric drill not included) 2. Material: The lawn mower blade sharpening tool is made of double layer corundum, which is durable and suitable for long term use. The version of the lawn mower blade sharpener is different from the old version, the version of the lawn mower blade sharpener makes the sharpening process easier, is strong and durable. 3. You need to ensure your lawnmower is in good condition for the efficiency of your lawn mowing task. Lawnmower blades need to be sharpened from time to time as they get dull or even rust. 4. Wide Application: The lawn mower blade sharpener can be used on lawn mower blades to make them sharp again. Used to sharpen lawn blades, lawn mowers, rotary tillers, drill blades, sickle bar cutters, etc. Fits most electric drills.