Durston 1525US PrecisionFit Steel Marked Ring Mandrel With Groove USA Sizes 1-16 Prop 65 - Chromium Patterned after French Pearloir and

Patterned after French Pearloir and Boîteroille tools

A precision cast block initial R

presented in a convenient wood storage box

Harmony sterling silver wire is made in the USA from 100% recycled material sourced from non-mined origins

Durston 1525US PrecisionFit Steel Marked Ring Mandrel With Groove USA Sizes 1-16 Prop 65 - Chromium Patterned after French Pearloir andThe 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