Oval 80% Ratio Bezel Block Small-4mm x 3.2mm to 14mm x 11.2mm-11 Holes 17 Degree K.TX301 Maintain proper speed and lubrication

Maintain proper speed and lubrication during use to extend bur life

14K gold alloy retains spring through extended use

38 mm Material Hardened steel Compatible Metals Gold

It is not compatible with any previous versions of the Jura QC system

The Foredom MABC-2 Screw Down Flex Shaft Hanger-Clamp provides a secure

Oval 80% Ratio Bezel Block Small-4mm x 3.2mm to 14mm x 11.2mm-11 Holes 17 Degree K.TX301 Maintain proper speed and lubricationThis 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