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The JDG ring Crafters mandrels, made from stainless steel or delrin
JDG ring Crafters Mandrels are a perfect fit for ring makers trying to get started at a lower cost than our premium stainless steel JDG Pro expanding ring mandrels.
Available in 2 sizes and materials, laser engraved with sizes on each step for ease of use. ( refer to SIZ
4.9
8 ratings
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Works perfectly
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Anonymous · October 15, 2026
Absolutely necesarry.
Dropped one 1 to many timed and had to replace it.
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Nick · July 19, 2026
Got these for my slow turner to prevent having to switch out all the time. Work perfectly