1. Hardened and tempered with chemical blackening finish
2. Includes a handy storage box for easy storage and transportation.
3. Stamp your personal ID on most metal surfaces with this hardened steel marking set.
4. Our stamps are manufactured from carbon steel, fully forged and tempered.
5. It can be used to stamp soft metals, including aluminum, tin, copper, brass, nickel silver, and wood; stainless steel is not suitable.It can be used to stamp soft metals, including aluminum, tin, copper, brass, nickel silver, and wood; stainless steel is not suitable.