Heart Blank Cutter Set — Narrow Profile, 4 Steel Punches, 6-24 mm, Jewellery Tool
£99.99
Sale price £99.99Regular price
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A slimmer take on the heart — elongated rather than squat — blanked in four graduated sizes: 23.75 × 11.55 mm, 19.75 × 9.57 mm, 16.16 × 8 mm and 13.21 × 6.42 mm. The small end of the range suits charms and detailed craft work; the larger sizes stand as pendants in their own right.
The roughly 76 × 76 mm block and all four punches are hardened high-carbon tool steel, each punch sharp on the cutting face with a bevelled end for striking. Use a brass or nylon mallet on non-ferrous sheet no thicker than 1.02 mm (18 gauge), with a suitable cutting lubricant to prolong the edges.
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.
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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