Dremel Aluminum Oxide Grinding Stone, 1/8" Shank is a high-quality industrial abrasive made for extended general-purpose grinding on metals, castings, welded joints, rivets, and rust. It is ideal for sharpening, deburring, and general-purpose grinding on most materials, including stainless steel. This grinding stone is specially designed for working with conic surfaces. It has a shank size of 1/8 inch and a diameter of 0.1875 inches.