Features: 1. Handy to use: This sharpener could be used for power drill and hand drill to sharpen the dull one, mow faster with less mower effort. 2. High performance: This product is made of premium brown corundum material, which is very strong and can make your lawn mower get clean edges and sharp again. 3. Fast speed: This product can sharpen your lawn mower in a short time, which can help you improve your work efficiency. 4. Easy to operate: This product is easy to use and operate, safe and reliable. 5. Spinning balance design: This product adopts the design of spinning balance and can test the balance of lawn mower blade, which is very practical. Descriptions: 1. The blade balancer has a simple structure and good practicability, and can quickly test the balance of the mower blade. 2. This product is used in many applications, suitable for industrial, fan motor, lawn mower, and also suitable for household use, very convenient. Specifications: Color: as shown Material: brown corundum Bonding agent: ceramic grinding wheel Shape: Dish-shaped grinding wheel Outer diameter: 50 (mm) Aperture diameter: shank diameter 6.35 (mm) Packing: transparent PP bag Package Included: 1 x Electric Stone Grinder Notes: 1.Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Please allow slight dimension difference due to different manual measurement.