Shank: 1/8"Cutter Size: 1/4" Diameter X 5/8" TallIdeal For Sharpening, De-Burring And General Purpose Grinding On most Materials Including Stainless SteelWorks On Metals, Castings, Welded Joints, Rivets And RustSpecially Designed For Working With Conic SurfacesPowerful Aluminum Oxide Sharpening Stone Can Be Used On Stainless Steel