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Rathburn Ring Stretcher to Stretch & Enlarge Rings & Bands!
Enlarges Rings & Bands Sizes 6.5" & Up!
Our "Rathburn Ring Stretcher" is made from hardened steel , ideal for jewelry professionals, quickly and efficiently stretches and enlarges rings & bands sizes 6.5" and up using this inexpensive tool. It is light weight and easily portable so you can work anywhere and easily around the world!
Includes 3 Piece Set
Our "Rathburn Ring Stretcher" comes with 3 pieces; one slotted mandrel, one smooth narrow mandrel, and one nylon die. Its used for stretching's all soft precious metals such as; silver, gold, copper...
Vicki Thompson
Reviewed in the United States on April 11, 2025
Don’t buy if you have a large ring size. Top of the mandrel flares out and two largest sizes don’t flare out at all. Started out on second largest then forced the ring onto the largest size and it still wouldn’t stretch a gold ring.
Stines
Reviewed in the United States on July 30, 2024
Was able to increase ring so that it fits again. Check on youtube for instructions on using the product. And be sure to watch a couple of videos on annealing. Annealing the ring will soften the metal and reduce the chance of breaking.I used it on a plain band (no gems), about 1/4" wide.What worked for me was to do several repetitions of annealing and then stretching a small amount. Don't try to stretch too much in one operation.Well made tool. Definitely worth the money
Jeff
Reviewed in the United States on January 30, 2024
I have experience in metallurgy so I was confident in what I was doing. But I resized my wife’s deceased grandmothers wedding rings with this tool just fine. Went from a size 6 to a 9 without a problem. Took 30 minutes per ring as I slightly tapped the tool with a rubber mallet and measured the gained distance of the total length of the tool with a caliper accordingly to note my progress and to let me know if I was going to fast (hard). I also put the ring with the stones in the oven on the tool at 170 degrees to ‘kinda’ help with the forming so the blows would be less intense. I would recommend going hotter but certainly not above 350-400 as the ring will change and the tool will loose its spring temper. It wasn’t necessary to put it in the oven but I wanted to be more careful to some degree as the band of it was also very thin. If you had a very critical job, you could heat it and tap it down .025 and put it back in the oven with the pressure still on the ring to let it destress and repeat the tedious process all over again. No expert can save you from making some type of error. I would recommend buying dummy rings and seeing how hard you can be on them before they break so you know the boundaries and understand the feeling and sound of the blows. If you don’t want the risk hire an insured professional.
D. Emilssohn
Reviewed in the United States on June 1, 2023
This is made from heavy steel, not aluminum or plastic. My wedding band was too tight to clear my knuckle, and the ring was slightly out of round. With a few whacks, it fits great and is perfectly round again. To remove the tapered drive shaft, I used a 3/8" socket extension, but anything else (long bolt, screwdriver, etc.) would work as well. This also has 8 splines which apply evenly distributed force to the ring.The only minor downside (if you could call it that) was the fact that it had a heavy coating of oil to keep it from rusting. A couple paper towels cured that. All in all, this was a good purchase, and saved me about $40 in jeweler's fees. Simple, sturdy, and it flat-out works.
Mkat
Reviewed in Canada on December 4, 2023
Worked well
Sor
Reviewed in Canada on January 6, 2023
quality is below imagination. Rough metal machining, not happy. Enlarging process increments is uncontrollable. Not recomended.
D
Reviewed in Australia on July 15, 2022
Delivered on time, product not bad.
Andrea R.
Reviewed in the United States on November 27, 2022
Do not use this on wedding rings or on any valuable rings, and definitely don’t use it on any rings with stones.Limit it to inexpensive rings. It’s too easy to damage rings with this tool.However, it’s great for inexpensive silver rings.READ THESE TIPS:I’ve learned the hard way how to use this.First of all, you MUST well oil the inside of the ring and the entire ring stretcher inside and out. Otherwise, your ring will get stuck on the stretcher and you won’t be able to get it off.Even when when well oiled, once your ring stretches, it’s will be very hard to get it off the metal thing. I recommend you turn the metal thing upside down, then put the edge of a screwdriver into the notches on the stretcher, repeating this in various notches m, and gently hammer. It takes patience. Your ring will end up with small nicks along the edge, but there’s no other way to get the ring off the stretcher.Don’t hammer too hard or stretch too much at once. Right now one part of my stretcher is completely stuck and I can’t get the piece apart. I stretched about 5 rings before this but now it’s not useable any more.I don’t regret buying it, but as I’ve said, be careful. Work little by little, and absolutely do not use this on valuable rings or ones you especially care about. For important rings, pay a jeweler to do the stretching.
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