Letter & Number Punches

You can buy letter and number punches in sizes from 3 mm to 8 mm. The size determines how large the mark will be. Use smaller sizes for small workpieces and larger ones for easier readable codes. The stamps are made of hardened steel. You strike them with a hammer on a flat surface. This creates permanent marks in sheet metal and machine components. The set is easy to hang on a hook. Position the punch straight for a clean result.

17 products

Permanent Metal Marking

Which size do you need?

Letter and number punches are available in sizes from 3 to 8 mm. The size determines the height of the impression. Choose 3 or 4 mm for small workpieces. Use 6 mm or larger for clearly readable codes on machines and parts. This ensures the mark fits the surface.

What to consider when ordering

Check whether you need individual punches or a complete set. A set often contains all letters or numbers in one size. Individual punches are useful if you frequently use a specific letter or number. The punches are made of hardened steel. This allows you to make permanent marks in sheet metal and machine parts. Always use a hammer and a flat surface.

For a sharp result

Hold the punch straight on the material. Strike with a controlled hammer blow. This prevents double or crooked impressions. After use, you can hang the set on a hook. This keeps the punches organised and within reach.

Letter and number punches belong with hand tools. If you want to make a hole before marking, take a look at drills. To secure your workpiece you use a hammer or clamping tools. To measure the impression afterwards, reach for measuring tools.