Angle Grinder Accessory: Sharpen your 312 mm drill bits with this compatible tool for angle grinders. It offers quick setup and precise grinding to maintain edges for cleaner holes and improved drilling efficiency while traveling. Versatile Compatibility: Designed for general use with various angle grinders, this portable grinding tool fits bits from 3 mm to 12 mm, making it suitable for DIY and professional tasks to extend bit lifespan and reduce effort. Grinding Performance: Engineered with plastic construction in green, black, and yellow colors, it guarantees accurate sharpening for drill auxiliary tools, bits stay sharp for consistent performance. UserFriendly Design: Featuring an intuitive mechanism with a size of 13 x 6.9 cm, this sharpener allows easy adjustments and operation by users of all skill levels, avoiding common sharpening errors for reliable results. Use scenarios: DIY projects at home: sharpen drill bits before use to achieve cleaner holes and better drilling efficiency. Onsite professional tasks: quick bit touchups to maintain performance during work shifts and reduce downtime. Travelready maintenance: compact, lightweight sharpening solution that travels easily between job sites.