Steel oval ring sizing mandrel, 10.75 inch, 3-10mm, for shaping jewellery

Steel Oval Bezel Ring Sizing Mandrel, 10.75 Inch, 3-10mm, Jewellery Making Forming Tool

£19.99
Sale price  £19.99 Regular price 
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Steel oval ring sizing mandrel, 10.75 inch, 3-10mm, for shaping jewellery

Steel Oval Bezel Ring Sizing Mandrel, 10.75 Inch, 3-10mm, Jewellery Making Forming Tool

£19.99
Sale price  £19.99 Regular price 
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For jewellers forming oval bezels, this steel mandrel is the correct tool for maintaining accurate geometry. It provides a continuous oval taper from 3–10mm, preventing the distortion that occurs when trying to adapt a standard round mandrel for oval work, ensuring a proper stone fit.

Key features

  • Steel construction provides a hard, durable surface for forming non-ferrous metals.
  • Continuous oval taper from 3mm to 10mm covers a common range of small-to-medium stone sizes.
  • Maintains true oval geometry, unlike round mandrels which can distort bezel walls during shaping.
  • Smooth, unmarked working surface prevents marring of precious metals during forming.
  • Features a non-slip handle for a secure grip whilst working at the bench.

Who it's for

An essential forming tool for UK bench jewellers, jewellery students, and stone setters who regularly fabricate or repair oval bezel settings. It is designed for those who realise the importance of using a dedicated, shape-specific mandrel for accurate work.

Specifications

  • Material: Steel
  • Overall Length: 10.75 inches (approx. 273mm)
  • Working Range: 3mm to 10mm (oval profile)

Free UK delivery · Same-day dispatch before 2pm · 30-day returns

Only 7 left at the bench Same-day Birmingham dispatch on weekday orders before 2pm.

Common questions at the bench

UK or US sizing?
Our steel ring mandrels carry both UK alphabetical and US numerical scales unless the product specifically notes UK-only or US-only in the description. Hardwood and aluminium mandrels are unmarked — use a separate ring sizer to measure.
Can I hammer directly against the mandrel?
Steel mandrels yes — that is what they are designed for. Hardwood mandrels are for forming and finishing only; hammering against them dents the wood and marks the workpiece. Aluminium mandrels: light planishing only, no forging.
What is a stepped mandrel for?
Stepped (tiered) mandrels let you work batches of rings or bangles in fixed standard sizes — useful for production work where you are making matched pairs or a series. Tapered mandrels suit one-off resizing where you need every size in between.
How do I store it without rust?
Wipe with a light camellia or 3-in-1 oil after wet work or polishing, then store in a dry drawer or wall rack. A small silica gel pack in the drawer is cheap insurance against humidity in unheated workshops.

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