This disc cutter set produces clean, consistent emerald-cut blanks from non-ferrous metal sheet. The block and four punches are machined from high-carbon tool steel, then hardened and tempered to maintain a sharp cutting edge. It provides a reliable method for creating identical shapes for jewellery and craft projects.
To use, select your punch and place your sheet metal (up to 18 gauge or 1.02 mm) in the corresponding slot on the 76 x 76 mm die block. Insert the punch and strike it firmly with a brass or nylon mallet. The set includes four punch sizes (W x L): 9.68 x 20.48 mm, 13.68 x 24.48 mm, 15.68 x 26.48 mm, and 17.34 x 28.14 mm. Using a cutting lubricant will prolong the life of the edges.
This tool is ideal for jewellers producing settings and pendants, silversmiths creating layered components, or model makers who require precise geometric parts from brass and copper sheet.
Cuts four distinct emerald shapes from non-ferrous sheet metal.
Punch sizes (W x L): 9.7x20.5, 13.7x24.5, 15.7x26.5, and 17.3x28.1 mm.
Made from hardened and tempered high-carbon tool steel for edge retention.
For use on soft metals up to 18 gauge (1.02 mm) like silver, gold, and copper.
Solid 76 x 76 mm (3 x 3 inch) steel block provides a stable cutting base.
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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