Rectangular ring mandrel, a long tapered steel bar with four flat faces and a black grip at the wide end, on linen

Rectangular Ring Mandrel, Steel Jewellery Forming Tool, Rectangle Shape Hammering Mandrel for Jewellery Making 13", 6 x 8 mm & 15 x 20 mm

£24.99
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Rectangular ring mandrel, a long tapered steel bar with four flat faces and a black grip at the wide end, on linen
SKU: 6Q-6Q9H-HK3K

Rectangular Ring Mandrel, Steel Jewellery Forming Tool, Rectangle Shape Hammering Mandrel for Jewellery Making 13", 6 x 8 mm & 15 x 20 mm

£24.99
In stock — dispatched from the UK
Order by 2pm UK time, Mon–Fri — we aim to dispatch same day
Free UK delivery
30-day returns
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UK registered
Free UK deliveryOn every order
Same-day dispatch targetOrder before 2pm UK time, Mon–Fri
30-day returnsUnused, original packaging

For jewellers forming rings from rectangular wire, this dedicated mandrel maintains the correct geometry during hammering. Its four flat faces prevent the profile from collapsing into an oval, a common issue when using a standard round mandrel. An essential forming stake for contemporary jewellery work.

Key features

  • Tapered rectangular profile from 6 x 8 mm at the tip to 15 x 20 mm at the handle.
  • Solid steel construction designed to withstand hammering with non-ferrous metals.
  • Maintains the integrity of four-sided profiles during ring forming and sizing.
  • Smooth, unmarked faces avoid marring the surface of your workpiece.
  • Fitted with a plain black handle for a secure hold in the hand or a vice.

Who it's for

An essential forming tool for UK bench jewellers and makers of contemporary jewellery. Also suitable for apprentices and students learning to work with non-traditional ring profiles, ensuring correct geometry from the start.

Specifications

  • Material: Steel
  • Overall Length: 330mm (13")
  • Profile: Rectangular, tapered
  • Small End Dimensions: 6mm x 8mm
  • Large End Dimensions: 15mm x 20mm

Free UK delivery · Same-day dispatch target for orders before 2pm Mon–Fri · 30-day returns

Specifications
Material Steel
Dimensions 330mm (13") overall length
Approx. shipping weight Approx. 400g
Finish Polished rectangular profile
What's included 1× rectangular ring mandrel
Compatibility Square/rectangular ring sizing and forming

Is this the right tool for you?

Best for

  • UK bench jewellers forming rings from rectangular wire
  • Makers of contemporary jewellery requiring precise rectangular profiles
  • Apprentices learning non-traditional ring forming techniques

Not for

  • Forming traditional round or oval ring profiles
  • Working with ferrous metals or hardened steel
  • Sizing rings made from pre-formed round wire

How this compares

Rectangular Ring Mandrel, Steel... Alternatives
Profile Geometry Tapered rectangular profile, specifically designed to maintain four-sided integrity during forming. Standard round or oval mandrel, causes rectangular profiles to collapse into an oval.
Material Solid steel construction, built to withstand hammering with non-ferrous metals. Lighter alloy or lower-grade steel, prone to wear or deformation under heavy use.
Surface Finish Smooth, unmarked faces prevent marring of the workpiece surface. Rougher or imperfect surfaces, may leave marks on jewellery pieces.
Intended Use Dedicated forming stake for rectangular wire rings and contemporary jewellery. General-purpose ring sizing, not optimised for specific non-traditional profiles.

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