This disc cutter set allows you to punch four distinct sizes of crescent moon shapes from non-ferrous metal sheet. The set includes a solid steel die block and four corresponding punches, each machined from hardened carbon tool steel for clean, repeatable cuts.
To use, slide your sheet metal (up to 18 gauge) into the die, insert the correct punch, and strike firmly with a mallet. The four crescent sizes are 10.6x11.2mm, 13.69x14.47mm, 16.36x17.29mm, and 19.06x20.15mm. Using a cutting lubricant will prolong the life of the cutting edges.
This tool is ideal for creating celestial-themed jewellery components, decorative inlays for model making, or producing consistent blanks for stamping and enamelling.
Four crescent punches: 10.6x11.2mm, 13.7x14.5mm, 16.4x17.3mm, and 19.1x20.2mm.
Block and punches are machined from hardened high-carbon tool steel.
Cuts non-ferrous metals like silver and copper up to 18 gauge (1.02mm).
The solid steel die block measures 63.5 x 89 mm (2.5 x 3.5 inches).
Each punch is approximately 38mm (1.5 inches) long with a bevelled striking end.
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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