The AV-18 has a capacity of .18 cubic feet. It has adjustable amplitude and is designed for heavy duty use with all medias. The 12-inch bowl is equipped with drains. This model has many features of our larger machines for processing metal parts, whether for deburring or polishing. Used for 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 preformed cabochons and small slabs. Shipping weight 22 pounds; shipping volume 2.13 cubic feet, 15” x 18” x 15”.