Machined from aircraft grade aluminum, harden anodized finish - this mandrel is the absolute market leader when it comes to quality, precision, and sizing consistency. Part of the Gold Standard series which includes the #174.GS finger sizer.
- Sizes 1-16
- Aircraft quality aluminum, military grade hard anodization
- Includes groove for stone set rings
- Gold Standard
- Previously marked as 175.00. The 175.GS includes an enhanced testing procedure to ensure consistency across the entire range of Pepetools Gold Standard Ring Calibrated ring mandrels.