- Versatile Application: This knife sharpener is designed for more than just lawn mower blades. It effectively sharpens blades for lawn tractors, rototillers, pruners, drill bits, and sickle cutters, making it an essential tool for various sharpening tasks. - User-Friendly Design: Easy to install and operate, this sharpener connects to any drill or hand drill with a 1/4 shank. Simply attach it to your drill and sharpen your blades quickly, saving you valuable time and improving your efficiency. - Precision Blade Balancing: Compatible with model 42-100, this sharpener includes blade compensation for optimal lawnmower balance. The balancer features multiple diameter levels, allowing you to achieve precise and effective balancing based on your blade size. - Durable Construction: Made from high-quality corundum, our lawn mower knife sharpener is built to last. Its robust design ensures long-term performance, providing excellent value for your garden maintenance needs. - Practical Use Cases: 1. Restore the sharpness of your lawn mower blades for a cleaner cut and healthier lawn. 2. Revive dull pruner blades to enhance your gardening efficiency and promote plant health. 3. Sharpen drill bits to improve drilling precision for your home improvement projects. Optimize your toolset with this reliable knife sharpener, designed for performance, durability, and convenience.