This disc cutter set allows you to punch four distinct sizes of narrow heart shapes from soft metal sheet. The set includes a solid, hardened carbon steel block and four matching punches, engineered for clean, repeatable cuts.
To use, place your sheet metal (up to 1.02 mm or 18 gauge) into the die, insert the corresponding punch, and strike firmly with a brass or nylon mallet. The punches create crisp blanks measuring approximately 23.75 x 11.55 mm, 19.75 x 9.57 mm, 16.16 x 8 mm, and 13.21 x 6.42 mm. Using a suitable cutting lubricant will help prolong the life of the cutting edges.
This tool is ideal for creating pendants, charms, and decorative elements for jewellery or detailed metal craft projects.
Block and punches are machined from hardened high-carbon tool steel.
Includes four narrow heart punches: 23.8, 19.8, 16.2, and 13.2 mm.
Cuts non-ferrous sheet metal up to 18 gauge (1.02 mm) thick.
The solid steel block measures approximately 76 x 76 mm (3 x 3 inches).
Punches feature a sharp cutting face and a beveled end for hammer striking.
Only 5 left at the benchSame-day Birmingham dispatch on weekday orders before 2pm.
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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