KEWAYO Diamond Grinding Burr Drill Bit, Diamond Burr Set with 1/8 Inch Shank Universal Fitment Rotary Tool Accessories for Stone Carving, DIY Grinding, Polishing, Engraving (3X5mm 20P)

20 Pieces burr grinding stone file with a storage box, polishing grinding tool grinding bits for chainsaw sharpener. Simple to operate: The grinding bit for chainsaw sharpener is easy to install and features good heat-dissipation, you can apply it to polish without disassembling the chain, which can improve work efficiency. Wide applications: Mainly applied for machinery, bearing, mold, casting parts deep hole, different internal surface, welding spot, welding seam grinding and burr grinding. Specifications: Material: emery grain Size: Grinding head diameter: approx. 5 mm in diameter Grinding head length: approx. 10 mm Shank diameter: approx. 3 mm Total length: approx. 45 mm Package includes: 20 x Burr grinding stone file 1 x Storage box