27-Piece 1-4-Inch Letter Stamp SetATD 9602 27 Piece 1 4"" Letter Stamp Set Manufactured from high quality steel, punches are induction hardened which gives durability and extended life even after repeated use The hardness at the stamping end is maintained at 58 62 HRC, which prevents the punch from splintering during use The striking end is tempered to 38 43 HRC and beveled to prevent breakage Contains (27) 1 4"" punches: Letters A through Z Ampersand (&) Shipping Weight: 3. 6 lbs.