Rich Yellow 9-14 Investment Casting Stone-In-Place-Master Alloy-Per Troy Ounce (20DWT) Ring Mountings This single-piece brass practice ring

This single-piece brass practice ring features a channel sized to fit 3mm square stones

preventing scratching and marring

Custom add-on modification for the John Frei Workbench

Each screwdriver uses a single-end blade design secured inside the handle with a locking set screw — commonly known as a grub screw

Available in three metal types: 14K White

Rich Yellow 9-14 Investment Casting Stone-In-Place-Master Alloy-Per Troy Ounce (20DWT) Ring Mountings This single-piece brass practice ringRich Yellow Stone in Place Investment Casting Master Alloy is formulated for jewelers who require a high reusability, tarnish resistant alloy suitable for casting directly with stones in place. Formerly known as Peach Klondike Yellow, this master alloy features high silver content and is designed for producing rich yellow 914K casting alloys. It is sold by the troy ounce (20 pennyweights or 31. 1 grams). Features Formulated for stone in place