Below is a list of Tumblers manufacturers from St. Louis, Missouri. Tumblers are one of the main components of finishing equipment and deburring equipment, the barrel or drum in which the objects to be finished are placed. The two main types of tumblers are rotary tumblers and vibratory tumblers, and both are used extensively in parts finishing and polishing operations. A tumbler can come in many different sizes depending on its intended application. Tumblers for stone polishing hobbyists will be smaller than those used for industrial parts cleaning.