This disc cutter set allows you to punch clean, consistent bell shapes from non-ferrous metal sheet. Both the die block and the four included punches are machined from hardened carbon tool steel, ensuring durable cutting edges when used correctly.
To operate, simply slide your sheet metal into the slot, place the corresponding punch into the die, and strike the beveled end firmly with a brass hammer. The set includes four distinct punch sizes: 8.71x15.56mm, 10.87x18.59mm, 13.36x22.1mm, and 15.94x25.75mm. For best results and to maintain the life of the cutting edges, we recommend using a cutting lubricant and working with annealed metal up to 18 gauge (1.02 mm).
This tool is ideal for jewellers creating batches of pendants or earring components, silversmiths producing decorative blanks, or model makers needing repeatable custom parts from brass or copper sheet.
Punches and die block are machined from hardened carbon tool steel.
Cuts non-ferrous metals like silver and copper up to 18 gauge (1.02mm).
Four bell punches: 8.7x15.6, 10.9x18.6, 13.4x22.1, and 15.9x25.8mm.
The solid steel die block measures approx. 64 x 89 mm (2.5 x 3.5 inches).
Use with a brass hammer and cutting oil for clean cuts and long tool life.
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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