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UNICRAFTALE 1Set Expanding Ring Mandrel with Hex Allen Key Steel Ring Stretcher Ring Mandrel for Lathe Heavy Duty Ring Shaper Tool for Ring Turning and Ring Making Ring Size 7-14

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$16.19

$ 6 .99 $6.99

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  • Description:This Large expanding ring mandrel for lathe fits ring sizes 7 to 14 This set also includes an Allen wrench to expand and contract the mandrel.
  • High quality steel material:Our expanding ring mandrels for ring making are made with carbon structural steel.it has higher strength, to deformation compared to ordinary steel.
  • Easy of use: It’s effortless to use this expanding mandrel for lathe. There is extra room on each ring size to accommodate tape to keep the inside of your rings scratch-free. For proper function, apply a layer or two of tape to the step you will be using. This helps protect the inside of your ring.
  • Features:Spinning your ring on a lathe will make it 10x easier to make rings compared to using a rotary tool or other methods.you can easily swap out any size and have a snug fit within seconds.
  • Precise:Expanding mandrel offers a high level of precision when making rings. Designed to be used in a lathe. Also fits in drill chuck.



Product Description

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Customer
Reviewed in the United States on February 6, 2025
Works OK
David Ewing
Reviewed in the United States on February 25, 2025
I don’t see how you can stretch your ring on something that just doesn’t wanna move. It did not want to move when I try to stretch a ring.
R. Custer
Reviewed in the United States on February 20, 2025
It is really hard to get the mandrel to pull in. The reality is most women's rings are delicate webbing. By the time you add half a size the gem is falling out and the art is deformed, probably not symmetricly.
ahMEDIC
Reviewed in the United States on January 1, 2025
Does not work properly, it’s ripped my wife’s ring
Neil Hostetter
Reviewed in the United States on September 30, 2024
Good item. Does the job. Can be sprung so don't over tighten.
bumper
Reviewed in the United States on May 25, 2024
This has has an 18mm shaft that needs to be secured for use, as no handle is provided. I chucked it in my metal lathe. Due to arthritis I guess, my "white gold" simple wedding ring would no longer fit. ID of the ring was 0.775". The ring would loosely fit onto the third step of the tool. At no point in the process, as the ring was stretched larger, would it fit onto the next larger step of the tool. In use, the tool "fingers" bent outward as expected, but the metal lacked adequate spring flexure to return to its original size.I started by lubricating the screw threads and its tapered head, as well as the ring to tool interface. I was able to snug up the ring, turning the hex wrench by hand and feeling when the ring was no longer free to turn on the tool. I then tightened the bolt about half a turn more after each sizing attempt. After each stretch attempt, the ring would slowly increase in size, but at no point would it fit on the next larger step of the tool. After each stretch the tool slots opened up a bit more, failing to spring fully back as the metal bent outward, taking a set as shown in the pictures.I was able to increase the ring size from 0.774" to 0.785". The ring still would not fit on the next larger step of the tool - though I can now get it on my finger! Outboard of the "step" where the ring was, the tool slots are bent outward permanently and trashed. Inadequate design not recommended.,
Matt M.
Reviewed in the United States on November 7, 2024
Worked perfectly and was exactly what I was hoping for!
Mark H.
Reviewed in Canada on November 30, 2024
It looks good but useless with out the bolt? Can you send me the bolt please
W. Beckley
Reviewed in the United States on October 26, 2024
Jammed up my last and made it slightly bent... Enough to make it useless on a lathe. This replacement works well, centers, tightens and holds just as expected. The shank is thicker than the last one, should hold up better.
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