Ruby Filter ImpGen Large wing nut allows easy

Large wing nut allows easy tightening and release without additional tools

stretching it as it is supported on a sandbag or a depression carved in wood

Available in Fine and Medium mesh grades to match your finishing needs

Some duct tape may be needed to secure the connection to hard 3" outlets on equipment

180 French Made Ring Cutter 148

Ruby Filter ImpGen Large wing nut allows easyA ruby filter is a simple yet effective gemological tool used to help differentiate natural rubies from ruby simulants and look alike stones. By altering the way certain wavelengths of light are viewed, it assists in identifying characteristic color reactions during examination. Features Assists in distinguishing rubies from ruby simulants Highlights characteristic color reactions under filtered light Compact and easy to use in bench or field settings