Fusion Firearms, Hammer & Sear Honing stick, 1/4" X 6 inch, 320 grit Extra-Fine. This is the greatest dressing stick I have ever used, cuts very well and holds a good corner, for both carbon and Stainless Steel hammer and sears. Will work with most all pistol parts. These are top quality professional series parts. Made From the best materials and processes available in today's market. MADE IN THE USA.