Features: Achieve precise blade balance and reduce vibration with this 4 piece lawn mower blade sharpener kit, effectively protecting your mower's motor and bearing while extending equipment lifespans through optimized cutting performances. The comprehensive set includes 4 wear resistant grinding wheels, conical locator, and disc accessories for universal compatibility with various trimmer heads and power drills, featuring high hardness abrasives for consistent sharpening accuracy. Ideal for homeowners and small gardening businesses seeking DIY maintenance solution, this blade balancer kit requires no professional tool easily operated via handheld drills for convenient atelier or backyard workshop use. Perfect for seasonal lawn equipment upkeep, this sharpening system restores dull mower blades to great condition while maintaining cutting uniformity across residential yards, parks, and commercial landscaping projects. Engineered with anti wear components and simplified coaxial alignment technology, this blade sharpener kit enhances cutting efficiency by 40% while minimizing abnormal blade wear and costly motor replacements. Specifications: Material: Plastic. Size:Approx. 60x60x50mm/2.36x2.36x1.96inches Diameter range: 9.5, 11, 12.5, 15.8, 19, 22.5, 25.5, 28.5, 31.5, 35mm. Package Includes: 4PCS Lawn Mower Blade Balancing Sharpener note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.