Infinitely Adjustable Ring Mandrel

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Infinitely Adjustable Ring Mandrel Experience perfection with our new Infinitely Adjustable Ring Mandrel! Designed to hold and spin rings of any size, from 0 to 15-1/2in, this high -speed steel tool ensures durability and precision for flawless results. Conveniently mounts on your existing 7mm pen mandrel, this CNC-machined marvel guarantees near-perfect runout (under .003in.) and requires a lathe that accepts a pen mandrel. Get your hands on this must-have tool today! Show more