Durston 1525US PrecisionFit Steel Marked Ring Mandrel With Groove USA Sizes 1-16 Prop 65 - Chromium A precision cast block initial

A precision cast block initial R

presented in a convenient wood storage box

Heavy-duty construction shared with larger Ikohe magnetic tumblers

Protected Gears: Covered reduction and side gears guard against contamination and wear

Durston 1525US PrecisionFit Steel Marked Ring Mandrel With Groove USA Sizes 1-16 Prop 65 - Chromium A precision cast block initialThe Durston PrecisionFit Steel Marked Ring Mandrel with Groove delivers professional grade accuracy for USA ring sizing 116. Hardened to 64RC, this mandrel provides a solid, stable base for sizing, forming, and shaping work. The PrecisionFit system eliminates the need to cross reference inaccurate ring sizers and mandrels, giving you confidence that your sizing is correct every time. All PrecisionFit mandrels and ring gauges are manufactured to