This disc cutter set allows you to punch clean, consistent diamond-shaped blanks from non-ferrous metal sheet. The die block and four matching punches are machined from hardened carbon tool steel, ensuring sharp edges and durability for repeatable work in a professional or hobbyist workshop.
To operate, simply slide your sheet metal into the die, select the desired punch, and strike it firmly with a brass or nylon mallet. The set includes four precise punch sizes: 28.92x25.61 mm, 24.79x21.95 mm, 20.66x18.20 mm, and 13.53x14.00 mm. For the cleanest cut and to prolong the life of the cutting edges, we recommend using a suitable cutting lubricant.
Use this tool for:
Fabricating diamond-shaped pendants, charms, and earring components.
Creating custom inlay pieces for metalwork or mixed-media projects.
Producing uniform blanks for subsequent stamping or enamelling work.
Cuts four distinct diamond shapes from non-ferrous sheet up to 18 gauge (1.02 mm).
Includes punch sizes (approx): 29x26mm, 25x22mm, 21x18mm, and 14x14mm.
Punches and die block are machined from hardened carbon tool steel for clean cuts.
Compact 76 x 76 mm (3 x 3 inch) die block fits easily on a jeweller's bench.
Punches are ground sharp on the cutting end and bevelled on the 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.
Drop your email for a WELCOME5 code — £5 off orders over £30, plus monthly bench-tested tool picks and buying guides from our Birmingham workshop. About one email a month, no spam.
Almost there
Use code WELCOME5 at checkout
£5 off your first order over £30. Check your inbox and confirm your subscription to join the monthly Bench Journal.
Cookies. Essential cookies keep the shop running; with your consent we also use analytics & personalisation cookies to improve it.
Privacy policy · change anytime in the footer.
Steel Design Punch for 5.0 mm Five-Pointed Stars, 60 HRC Hardness £7.99
1 x Heavy Duty Brass Doming Dapping Block, 2.0 Inch Metal Shaping Tool for Jewellery Making and Beading £29.99
Wooden Stamp Holder Safety Block for Jewellery Making, Metal Marking, Round and Square Stamps, 4.1 x 4.1 x 4.1 cm £7.99
9 Inch Heavy Duty Large Double Ended Jewellery Making Forming Stake No 3, Hardened Steel, Synclastic and Anticlastic, Highly Polished £29.99
