Professional 36Pcs. Steel metal number and letter punch set ,Uppercase, All Stamps are made of alloy steel for strength and hardness , Hardness: Hrc 58-62.36Pcs. Stamping set Includes 26Pcs.Uppercase Letter(A-Z) , 1Pc. Symbols(&) ,9Pcs. Number(0-9) ,Reverse “6” can be used as “9”.The stamping set better for permanently marking steel,Brass,Plastic,Leather,Paper,Aluminum,Sliver and Stainless steel Etc. Use with a hammer to permanently engrave various commemorative statements or figures (Name,Add.Date Etc.) on material including jewelry craft.All stamps are made to a high standard, With accurate dimensions and clear strokes. Sanding finished on the surface of the products.The whole product is packed into a sturdy and nice plastic case for easy storage.