The Stone Carving Sintered Diamond Bur is a professional-grade rotary tool designed for deep carving, shaping, and texturing of hard stoneslike granite , agate, quartz, jade, and marble. Unlike electroplated burs, sintered burs feature diamond particles embedded throughout the entire head, providing superior longevity and consistent cutting power even as the tool wears down.Ideal for artisans, lapidary workers, and stone sculptors, this bur&nb