Tempered steel metal letter and number stamps, 3mm, for jewellery marking

37 Piece Alphanumeric Metal Punch Stamps, 3mm Letters A-Z and Numbers 0-9, & Sign, Tempered Steel, Jewellery Making Kit

£13.99
Sale price  £13.99 Regular price 
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Tempered steel metal letter and number stamps, 3mm, for jewellery marking

37 Piece Alphanumeric Metal Punch Stamps, 3mm Letters A-Z and Numbers 0-9, & Sign, Tempered Steel, Jewellery Making Kit

£13.99
Sale price  £13.99 Regular price 
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For UK jewellers and silversmiths personalising rings and pendants, this 37-piece alphanumeric punch set delivers clear 3mm impressions. The compact character height is ideal for marking initials, dates, or hallmarks onto smaller precious metal surfaces where legibility is critical.

Key features

  • Includes the full alphabet (A-Z), numerals (0-9), and an ampersand (&) character.
  • Produces a consistent 3mm character height suitable for ring shanks and small charms.
  • Machined from tempered steel to ensure sharp, lasting impressions on soft metals.
  • Each punch has a square-profile steel shank for a stable grip during striking.
  • Supplied in a partitioned red plastic case for organised bench-top storage.

Who it's for

A go-to set for bench jewellers, silversmiths, and craftspeople personalising sterling silver and gold work. Also suitable for metalworkers marking identification codes or decorative text onto small non-ferrous metal components.

Specifications

  • Material: Tempered steel
  • Character Height: 3mm
  • Set Contents: 37 punches (A-Z, 0-9, &)

Free UK delivery · Same-day dispatch before 2pm · 30-day returns

Only 5 left at the bench Same-day Birmingham dispatch on weekday orders before 2pm.

Common questions at the bench

What metal does this punch work on?
Our steel letter, number, and design punches are heat-treated to strike non-ferrous metals: silver (sterling, fine), copper, brass, bronze, aluminium, gold. Striking hardened steel will damage the face. For pewter and very soft alloys, use light strikes.
What size impression do I need?
1–2 mm for ring shanks and small pieces (initials, hallmark-style); 3–4 mm for pendant backs and signed plaques; 5 mm+ for presentation pieces and stamped jewellery components. Bigger is not always better — a clean small mark reads better than a struggle with an oversized one.
What do I strike it with?
A 1–2 lb brass mallet on a polished steel bench block. Do not use a steel hammer — it will deform the punch over time. One firm strike beats two soft ones for a clean impression.
How do I keep the punch sharp?
Polished punches stay sharp for thousands of strikes if you are hitting cleanly on a flat block. If the face starts blurring impressions, polish lightly with 600-grit emery, then a buffing mop on a polishing motor. Replace before the face deforms further.

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