Oval 80% Ratio Bezel Block Small-4mm x 3.2mm to 14mm x 11.2mm-11 Holes 17 Degree Ransom & Randolph full-inch increments only (1"–12")

full-inch increments only (1"–12")

Includes threaded hex nut for secure shaft attachment

The height-to-width ratio of this profile is 200% — the height is exactly twice the width

Using the mandrels together with these sizing rings and the aluminum ring stick creates a fully matched

The handpiece shown in product photos is not included

Oval 80% Ratio Bezel Block Small-4mm x 3.2mm to 14mm x 11.2mm-11 Holes 17 Degree Ransom & Randolph full-inch increments only (1"–12")This oval bezel block features an 80% ratio, meaning the width of each hole is 80% of its height a proportion especially well suited for cabochon gemstones. With 11 graduated hole sizes ranging from 4mm x 3. 2mm up to 14mm x 11. 2mm, this block covers a broad range of bezel setting needs in a single compact tool. Otto Frei also offers oval bezel blocks in 75% and 60% ratios. The 75% ratio is historically popular and more closely matches faceted