Refractometer Nechamkim Featuring 9 square wire grooves

Featuring 9 square wire grooves and a set of half-round extension rollers

Interchangeable design compatible with Eschenbach binocular magnifier frames

Four torches in one: functions as a repair torch

Trusted by professional jewelers and metalsmiths worldwide

Refractometer Nechamkim Featuring 9 square wire groovesThe GemPro refractometer is a primary gemological instrument used to measure the refractive index of gemstones for accurate identification. Clear optics and an easy viewing lens make readings straightforward, helping you quickly determine one of a stones most critical optical properties. Features Measures refractive index for gemstone identification Easy viewing lens for clear scale observation Designed for professional gemological use Compact