This letter punch set is manufactured from quality carbon steel and are induction hardened, giving them increased durability and extended life for repeated use.
Manufactured from quality carbon steel
Punches are induction hardened, which gives durability and extended life for repeated use
The hardness at the stamping end is maintained at 58-62 HRC, the striking end is tempered to 38-43 HRC
The striking end being tempered to 38-43HRC prevents the punch from splintering during use, and is chamfered to prevent breakage