Premium Material: The lawn mower blade sharpening tool is made of double-layer corundum, which is highly durable and suitable for long-term use. The new version of the lawn mower blade sharpener makes the sharpening process easier and is strong and reliable. 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 bit, attach the sharpener to your drill and install in just 10 seconds to sharpen any dull blade. (Note: Electric drill not included) Wide Application: The lawn mower blade sharpener can be used on lawn mower blades to make them sharp again. It can be used to sharpen lawn blades, lawn mowers, rotary tillers, drill blades, sickle bar cutters, and more. It fits most electric drills. You need to keep your lawnmower blade in good condition to maintain the efficiency of your lawn mowing task. Lawnmower blades need to be sharpened from time to time as they can get dull or even rusty. Practical Sharpener Tool: The lawnmower dull blade sharpener is specially designed to be fitted on a power drill to sharpen your lawnmower blade, making the sharpening process easier as it can be done within minutes and the only tool you need is a power drill. Just like a drill bit, install the sharpener onto your power drill and it is ready to sharpen any dull blade. It is a necessary tool to use with lawn mower and lawn tractor blades. Please note: there may be slight color differences or variations in the product, but this does not affect its use. Thank you for your understanding. Specifications: 4 pcs set Color: Black Material: Brown Corundum Package Contents: 1 set x Lawnmower Dull Blade Sharpener Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. A measurement error of +/- 1-3cm is acceptable.