Full Set of 3 (63 Punches): metal stamping kit includes (1) uppercase letter set (1) lowercase letter set (1) number stamp set.
Size: The stamp heads are 3mm. The letters will naturally vary in size. The shank size is 2 1/4'' x 1/4''.
For stamping soft metals including aluminum, pewter, Alkeme, copper, brass, nickel silver, and also wood. Do not use on stainless steel.
Please note that the sides of the stamps are not labeled with markings. Each set includes storage case.
Oil-coated to protect from rust - simply wipe down with a dry paper towel or rag before using.