Ring Reducing Plate

This high-quality, double-sided reducing plate features sixteen openings — eight per side — and is smoothly polished to prevent marring of precious metal bands. Each hole shares the same starting diameter but offers a different taper on each side, giving you 16 distinct reduction choices from a single 8-hole plate.

The primary application for this reducing plate is the slight size reduction of plain round precious metal wedding bands in gold or platinum. It is designed to fit the Italian-made ring stretcher and reducer (item 148.350), which uses a round plate that presses down on the ring as the tool lever is pulled.

When reducing ring sizes, the 27mm outside diameter of the largest hole can reduce a USA size 13–14 plain domed band of medium weight by a full size. Note that the outside diameter of the ring is the limiting factor — not the nominal ring size of the band. This plate is also well suited for making coin rings.

Features

• Double-sided design with 8 holes per side — 16 taper choices total
• Each hole begins at the same diameter with a different taper on each side
• Smoothly polished finish prevents marring of precious metal surfaces
• Designed for use with the Italian-made ring stretcher and reducer (148.350)
• Suitable for reducing plain round gold and platinum wedding bands
• Also used for coin ring fabrication

Specifications

Notes

• The outside diameter of the ring — not its nominal ring size — determines which hole can be used.
• The largest hole (27mm outside diameter) is suitable for reducing a USA size 13–14 plain domed band of medium weight by approximately one full size.
• This is the same reducing plate included with the 148.350 ring stretcher and reducer.