Dremel 5/8 In. Aluminum Oxide Grinding Stone 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 i for use on a wide range of materials including stainless steel. This grinding stone is specially crafted for working with conic surfaces and features a durable aluminum oxide material that ensures reliable performance. It comes with a 1/8" shank diameter and a 5/8" bit diameter, providing precise and efficient grinding for various tasks. The product is packaged individually on a card for convenience and easy handling. Model Number: 941