Handheld ring stretcher.
Works by 'squashing' the ring around the outside as you turn handle.
Includes 16 steel discs for ring shanks with thicknesses of between 4mm and 1mm.
Yes it works fine but it's hard work compared with the large bench / workshop models .
However, as a low-cost, simple, effective ring-sizing machine...go for it!
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Hi tell me about the use of machine and all size change facility available in machine
You also get (not shown in the picture) a set of 16 discs, each with a groove. Select the 'groove' of the same size as the ring shank and insert into the machine. Screw the handle to 'grip' the ring between the two slots. Now turn (push-pull) the entire top (horizontal part) of the machine to 'squish' the ring slightly, releasing and turning the ring regularly to ensure it 'squishes' evenly, and tightening the screw slighly every few 'squishes'. In this way, you can enlarge a ring by 1/2 to 1 size.
This is a simple and compact shopfront machine for use by jewellers who are familiar with the properties of gold and silver and know just how hard to 'squish' the ring before it cracks or snaps (e.g. 18ct is softer than 9ct, a large thin shank is easier to handle than a small thick shank) - it is a professional compact machine that is used in many thousands of shops.