New Upgrade and High Quality: The new version lawn mower blade sharpener made of double-layer corundum, high quality, durable, long service life, blade sharpener can be used repeatedly. Our lawn mower blade sharpeners are supplied from the original factory, absolute quality assurance. Wide Application: Widely used for sharpening lawn blade, drill blade, lawn mower, sickle bar cutter, rototiller and so on. This sharpener can be used for power drills and hand drills to sharpen the dull blade. Size &amp; Packing: Size: 5.8cm x 5.8cm x 1.7cm per piece. Packing: 4 x Blade Sharpener. Easy to Use: It only takes 10 seconds to install. You just need to install it on your electric drill to use it. And it can quickly sharpen dull old blades. Effective your productivity. Features: The new lawn mower blade sharpener is made of double-layer emery and brown corundum, with high quality, durability and long service life. They are widely used for sharpening lawn blades, drill blades, lawn mowers, rotary mowers, etc. The sharpener can be used for electric drills and hand drills to sharpen blunt tips. < p>The lawn mower sharpener can be easily installed on the electric drill to sharpen the blade easily and quickly, making the blade more effective (saving time, effort and safety). < p> Specifications: Material: carborundum. Quantity: 3 pieces. Size: approx. 5.8 x 5 .8 x 1.7 cm. Special attention: 1. Due to the light and monitor difference, the actual item's color may be slightly different from the image. 2. Please allow slight dimension difference due to different manual measurement.