3-in-1 Metal Ring Mandrel, Ring Sizer, and Gauge Set with Rubber Hammer

Bought to repair a damaged gold ring, perfect for the job. Ring reformed to correct shape easily before gold soldering.

Excellent mandrel enabled me to reshape my ring

I bought this to resize some of my Wifes rings. It did the job nicely. Though the product itself doesn't feel like it's the best of quality, it did perform the task in hand perfectly well. All the items needed for resizing a ring are included in the package, ring size guages, rubber / plastic mallett and a ring size mandrel. Certainly worth the money if you need to resize a handful of rings.

I think this a great item and definitely is worth the money

Rating: 3 out of 5 stars First Impressions The set arrives in a slim box containing three components: a tapered steel ring mandrel marked with UK sizes A through Z, a set of 27 ring sizer gauges on a split ring, and a small rubber-headed mallet. The package has a modest but reassuring heft at 400 grams, and the steel mandrel in particular feels solid on first inspection. The sizing gauges are stamped clearly and the mallet handle, whilst modest, is serviceable. For under £10, the presentation inspires cautious optimism. Build Quality and Components The ring sizer gauges are adequately finished and cover the full UK alphabetical range, allowing rapid identification of finger size without recourse to a tape measure or jeweller. The gauges themselves are a thin stamped metal that flexes slightly under pressure but holds its shape for sizing purposes. The mallet is the weakest component: its rubber head is attached to a short plastic-bodied handle that feels noticeably less robust than the mandrel it is designed to work alongside. Several reviewers note the mallet deteriorates quickly under sustained use, and this observation is consistent with the construction apparent on inspection. The mandrel, which is the central tool in this set, presents the most significant design issue. Rather than presenting a fully circular cross-section throughout its length, it features two flat-sided ridges running its full length on opposing sides. This is an inexplicable departure from what the tool's purpose demands: a smooth, uniformly round taper. In practice, reshaping a ring that has lost its circular form requires constant rotation of the ring around the mandrel to avoid the flat sections imposing an uneven profile. A competent result is achievable with patience, but the process is considerably more laborious than it should be, and the risk of introducing subtle distortion is real for anyone without prior experience. Performance in Use For the task of sizing a finger and identifying the correct ring measurement, the gauge set performs without complaint. For light ring adjustment on softer metals, such as fine silver or low-carat gold alloys, the mandrel and mallet combination can achieve a meaningful result. One reviewer reports successfully bringing a badly misshapen ring back to a wearable form, which speaks to the tool's underlying capability when used with care and persistence. The critical caveat, clearly articulated by an experienced reviewer, is that harder metals are beyond the realistic scope of this set. Attempting to resize a 9-carat gold ring risks damaging either the ring or the tool, and the mallet in particular is not engineered for sustained heavy work. This is a set for occasional domestic use and light hobby jewellery making, not a substitute for professional bench tools. Shortcomings The flat-sided mandrel design is the dominant limitation and one that is difficult to justify on any functional grounds. The mallet's durability is a secondary concern. The product listing copy is also repetitive and somewhat poorly constructed, which does not inspire confidence, though this does not affect the tools themselves. Suitability and Value The set is well suited to anyone needing to measure ring sizes at home, adjust a soft-metal ring by one size, or reshape a slightly bent piece of costume jewellery. It is not suited to working with hard metals, significant resizing, or any application demanding professional precision. At £9.98 for three tools, the value is reasonable provided expectations are calibrated accordingly. Closing Verdict A serviceable entry-level ring tool set that covers the basics at a fair price, let down by a mandrel design flaw that should not exist in a product of this type. Three stars reflects genuine usefulness tempered by a correctable but unaddressed shortcoming.

Works well to increase size of my wife’s wedding ring (I wormed the gold ring in almost boiling water first to try and make it more malleable).

I was worried this would damage my ring that has a design on the outside but as the hammer head is soft, it did not. Took quite a lot of hitting, maybe half an hour or so of continuous hitting but it saved me like £50 compared to going to jewellers. I recommend this but only if you want to go up a size or a size and a half max, otherwise I don't think the metal would be able to take it and it may snap the ring.

Wedding Ring needed adjusting . This really is a Brilliant product so easy to use. Tool 5 minutes and hey presto

mauvaise qualitie de la mateau, faite avec une boulon mouilée dand une plastic fragile..et numeros de tailles qui ne corresponde pas a rien .

Not too bad you get what you pay for.

Don't do it. I completely destroyed my ring. I'm sure it's possible to use this safely but I certainly couldn't. I had to get my ring repaired after and the jeweller told me to throw it out immediately. He told me that this is absolutely not the way to resize a ring. For one, if the ring has stones in it the process will cause the setting to warp and they will become loose and fall out. The ring might also snap if you stretch it too far. Even if it doesn't snap or the stones fall out, you will have damaged the integrity of the ring and made it much more likely to break in future. Don't use this unless you're will to lose the ring or pay to get it fixed.