This disc cutter set allows you to punch clean, consistent pentagon shapes from non-ferrous metal sheet. The block and four matching punches are machined from hardened carbon tool steel for durability and a sharp cutting action. The cutting edges are tempered to maintain their sharpness through repeated use with appropriate materials.
To use, place your sheet metal in the slot, insert the correct punch, and strike its bevelled end firmly with a brass or nylon mallet. The four included punch sizes are 12x13 mm, 18x17 mm, 21x22 mm, and 27x26 mm. For best results and to prolong the life of the cutting edges, we recommend using a cutting lubricant and annealing your metal before punching.
Use cases include:
Creating geometric jewellery components
Producing decorative inlays for models
Fabricating uniform blanks for enamelling or stamping
Block and punches machined from hardened, tempered carbon tool steel.
Includes four pentagon punches: 12 mm, 18 mm, 21 mm, and 27 mm (approx).
Cuts non-ferrous metals like silver and copper up to 18 gauge (1.02 mm).
Solid steel die block measures approximately 76 x 76 mm (3 x 3 inches).
Total set weight is approximately 1.2 kg.
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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