Abrasive Material: Aluminum Oxide | Brand Name: Dremel | Diameter: 1 in. | Maximum Speed: 35000 rpm | Number in Package: 1 pc. | Overall Length: 1.5 in. | Shank Diameter: 1/8 in. | Shape: Cylinder | Usage: Sharpening, Deburring, General Purpose Grinding | Point Length: 1 in. A high quality industrial abrasive made for extended general purpose grinding on metals, castings, welded joints, rivets and rust. | Ideal for sharpening, deburring, and general purpose grinding | Use on metals, castings, welded joints, rivets and rustordless MultiPro Rotary Tool Kit #7700 and Cord | Specially designed for working with conic surfaces