Hardened Ring Mandrels ? Oval from Durston Tools. Durston Tools’ Hardened Oval Ring Mandrel.
This Hardened Shaped Ring Mandrel is made from the highest quality materials and produces consistent, outstanding results. Unmarked tapered mandrel consisting of hardened 64 Rockwell and ground.
With ergonomically designed handles, each ring mandrel is created to fit comfortably into your hand, providing support and comfort.
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