High-Speed & Efficient Sharpening: This chainsaw sharpener allows for quick, efficient sharpening without removing the chain, significantly reducing downtime. Ideal for those who prefer a swift, effective alternative to manual sharpening. Comprehensive 21-Piece Set: This set includes three sizes of grinding heads (5/32inch, 3/16inch, 7/32inch) with seven pieces each, ensuring you have the right tool for various needs. The 3 mm shank diameter and 1.77inch total length make them versatile for multiple sharpening tasks. Superior Sharpening Performance: Equipped with titanium-coated emery, our sharpeners a uniform and fine filing effect. The high-quality material distribution guarantees that your chain remains as as new, producing large flakes instead of sawdust. and Reusable: Constructed from robust titanium-coated emery, these chain saw sharpeners are not only tough and to breaking but also offer a significantly longer lifespan compared to non-titanium plated alternatives. Versatile Application: Perfect for sharpening chainsaws and applicable for a wide range of other tasks including mechanical and metal work, wood, jade, and glass polishing. An excellent, practical gift for DIY enthusiasts, including dads, husbands, and lumberjacks., Manufacturer: Akfldms