This Raytech AV-75DC Adjusta-Vibe™ Vibratory Tumbler with Drain Chute has adjustable amplitude and is designed for heavy-duty use with all medias. Features a capacity of .75 cubic feet. A 21-inch bowl is equipped with drain chute and discharge port. The unit is ideal for de-burring or polishing metal parts, descaling metal castings, deburring metal stampings and machined parts, cutting radii on sharp edges of metal parts, grinding and polishing baroque gemstones from rough chips, smoothing and polishing pre-formed cabochons and small slabs, and more.