• The striking end is tempered to 38-43 HRC and beveled to prevent breakage
• Contains (9) 3/16" punches: Numbers 0 through 9 (6 and 9 are interchangeable)
• 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