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

Letter & Number Punch Set — 37 Tempered Steel Metal Stamps, 3mm, A-Z, 0-9 & Ampersand

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

Letter & Number Punch Set — 37 Tempered Steel Metal Stamps, 3mm, A-Z, 0-9 & Ampersand

£13.99
Sale price  £13.99 Regular price 
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A 37-piece punch set for marking metal directly at the bench: the full A-Z, numerals 0-9 and an ampersand, each striking a clear 3mm character. That height sits well on ring shanks, charms and small pendants where initials and dates must stay legible. If you are marking silver, our guide to reading UK hallmarks explains the official marks that sit alongside your own.

Each punch is machined from tempered steel with a square-profile shank, so it registers squarely between the fingers before the hammer falls. The set stores in a partitioned red plastic case that keeps every character findable. Best kept to soft, non-ferrous metals such as sterling silver and gold.

  • 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

Weight 350 g

What jewellers say about us

★★★★★
“Reasonable quality and half the price of the others available. Pleasantly surprised.”
Kindle Customer · Verified buyer
★★★★★
“Fabulous product and customer service. Would surely buy again.”
Kay · Verified buyer
★★★★★
“Excellent value, good quality item. Exactly what was described.”
Alan · Verified buyer

Read all customer reviews →

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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