Suitable for stamping steel, aluminium, copper, brass etc. Hardened and tempered high carbon steel. Total length of each punch 60mm. Letter size 3mm type face. Set includes 27 letters (from A Z) plus the "&" symbol as well as 9 number punches (0 8) use the 6 as a 9.
This product will do the Job I want it for. It seems well made and should last quite a long time. I would buy another one if I required it. It is nicely presented in a wooden case.