For steel and metal. 27 letter punches, a-z y; for stamping on materials with a tensile strength of up to 120 kp / mm2; made of hardened steel and presented in a plastic box; symbols according to din 1451 hardened on the engraving side according to 58-61 hrc; beveled edges towards the stamping surface for greater accuracy; each stamp marked with: symbol, size of the international symbol and symbol Eye protection.