This kit includes complete rotary tool accessories for cutting, grinding, sanding, sharpening, polishing, engraving, drilling, and cleaning, meet your various DIY application requirements All-purpose accessory for cutting, grinding, sanding, carving, and polishing on a variety of materials Suitable for most ferrous and non-ferrous metals, castings, and welded joint. Accessories for fine detail work on jade, ceramic, glass, wood, hardened steel, cast iron, stainless Shank Diameter: 1/8-inch, universal fitment for use on all major brands Reusable storage case for easy storage and carrying