Aluminum oxide abrasive stone Golden Star

THE GOLDEN STAR EDM STONE Made with premium aluminum oxide grain and a proprietary treatment process, the Golden Star delivers exceptional performance on EDM surfaces, milling and machining marks. The Golden Star is of medium hardness and has a fast breakdown offering quick material removal. It contours quickly and leaves a silky smooth finish. The Golden Star works on all tool steels and is terrific when used during hand stoning as well as with profilers. Lengthy pre-lubrication is not required before use, but the Golden Star should be used with a lubricant.