This disc cutter set allows you to punch clean, consistent spade shapes from non-ferrous metal sheet. Both the 76 mm square die block and the four included punches are machined from high-carbon tool steel and have been tempered for durability and edge retention. This ensures a clean shearing action when struck, minimising finishing work on your blanks.
The set includes four distinct punch sizes (width x height): 18.76 x 12.52 mm, 20.11 x 15.03 mm, 26.81 x 20.04 mm, and 30.16 x 22.54 mm. It is designed to work with sheet metal up to 18 gauge (1.02 mm) thick. For best results and to prolong the life of the cutting edges, we recommend using a cutting lubricant and annealing your metal before punching.
This tool is well-suited for jewellers creating custom pendants, silversmiths producing decorative elements for larger pieces, or metalwork crafters making unique tags and components.
Punches and die block are machined from high-carbon tool steel, then tempered.
Includes four spade punches: 18.8x12.5, 20.1x15.0, 26.8x20.0, and 30.2x22.5 mm.
Cuts non-ferrous sheet metal like silver, copper, and brass up to 18 gauge (1.02 mm).
The solid steel die block measures 76 x 76 mm (3 x 3 inches) for bench stability.
Slide sheet metal into the slot, insert the matching punch, and strike firmly.
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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