Dremel 3/8 In. Aluminum Oxide Grinding Stone, Cylinder the highest industrial quality for extended general-purpose grinding and long abrasive life. It is designed to work effectively on metals, castings, welded joints, rivets, and rust, making it a versatile tool for various applications. This grinding stone is suitable for use on most materials, including stainless steel, and is specially designed for working with conic surfaces. Featuring a 1/8" shank, it provides reliable performance and durability for your grinding needs. Model Number: 932