STAMPING NUMBERS 7MM are tools made from hardened steel, designed for applying permanent markings to metal, wood, or plastic. Each set contains numbers in a uniform size of 7 mm, which are hammered into the material to create deep and lasting impressions. Ideal for identifying and numbering parts or products, these stamps offer precision and durability. They are suitable for industrial use as well as hobby and DIY applications. Their robust construction ensures they withstand harsh conditions and remain usable for a long time without losing quality.