Gemstone Gauge — Jeweller's Spring Caliper, 7.0 Inch, 0.1–15 mm Measuring Range

A spring caliper for the quick external measurements bench work runs on: gemstone dimensions before cutting a seat, bezel depths, and wire or sheet thickness checked mid-job. The spring-loaded handle holds the arms against the work at consistent pressure, and they stay in place after you lift the tool away, so the reading survives the trip back to the bench pin. Useful company for bezel setting, where stone and setting have to agree to a tenth of a millimetre.

The curved, brass-coloured scale reads from 0.1 mm to 15 mm in engraved 0.1 mm graduations. Steel construction with a central pivot keeps the action smooth for one-handed use, and the tool measures 7.0 inches (approx. 178 mm) overall.

• Curved, brass-coloured scale provides clear readings from 0.1mm to 15mm.
• Scale is engraved with fine 0.1mm graduations for detailed work.
• Spring-loaded handle maintains consistent pressure on the workpiece.
• The arms remain in place after measurement, preventing loss of the reading.
• Constructed from steel with a central pivot for smooth, one-handed use.

Who it's for

A staple for UK bench jewellers and gem setters measuring stones, wire, and setting depths. Also suited for model makers, horologists, and technicians requiring quick, repeatable external measurements.

Specifications

• Material: Steel body with brass-coloured scale
• Overall Length: 7.0" (approx. 178mm)
• Measurement Range: 0.1mm to 15.0mm
• Graduation: 0.1mm

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