Built to withstand tough jobs. Made from oxidationresistant aluminum for strength and durability, this sharpener is designed for long life and repeated use. Doublelayer whetstone for efficient sharpening. The duallayer design helps keep the base cooler during grinding, providing more accurate and faster multiangle sharpening while saving time and energy. Wide compatibility and practical applications. Suitable for sharpening drill cutters, rototillers, and similar tools. It can be used with both power drills and hand drills to revive dull bits quickly, improving productivity. Easy to attach and use. The sharpener attaches simply to power drills or hand drills, enabling quick and effective sharpening. Use scenarios Woodworking: sharpen drill bits before drilling into hardwood for cleaner holes. Garden maintenance: refresh rototiller or cultivator blades for efficient soil work. Metalworking: revive dull drill bits to extend their life and reduce downtime.