1. The lawn mower blade sharpsener is suitable for various power drills and hand drills. It is convenient to use and high in efficiency. Designed to be mounted in any 1/4" drill.<br> 2. The mower sharpseners feature a perfect rotary balance design, which makes cutting edges quick and easy, saving time and effort. It is easy to use and high in efficiency.<br> 3. The sharpsener is made of high-quality grinding stone, which is sturdy and durable, which makes the cutting edge of the lawn mower clean and sharps.<br> 4. Balancing Your Blades When Sharpening Reduces Engine and Spindle Bearing Wear.<br> 5. Works on most mowers without removing the blade.<br> 6. Drill Mountable Blade Sharpener Cuts The Correct Angle.<br> 7. It is a efficient tool for sharpsening lawn blade, drill blade, mower, sickle bar cutter, roto tillers, hoe and so on, make the edge become more effective.<br> Specifications:<br> Material: Corundum.<br> Model: 4 Layers, 2 Layers<br> Size: As the picture<br> Diameter: 55mm / 2.1"<br> Shank Diameter: 6.35mm / 1/4"<br> Package Included:<br> 1 * Lawn Mower Blade Sharpener