Item Name: Letter & Number Punch Metal Stamp Punches Alphabet Punches Alpha-numeric Punch. Specification: 3MMThe font typed out is normal, and the font is clear.This product is used for: lettering on woodworking, aluminum, luggage, plastic, leather, etcOverall Heat treatmentHardness: about 50 degrees, the surface is sandblasted (rust-proof).Material: 40 chrome38-piece set of steel stamps: It consists of 26 capital letters A-Z, plus & and 9 numbers 0-8 (6 and 9 are interchangeable), plus an automatic copper punch. Packing:1Set Due to the difference between different monitors,the picture may not reflect the actual color of the itemPlease allow 0.1-1cm differs due to manual measurement,thanks *Please make