#TT140HS This is the High Speed heavy-duty version of the Model B Thumler's Tumbler, using the 1/30 horsepower 3000rpm motor to clean your brass fast when using stainless steel! Do not confuse this high speed Model B Heavy Duty with the Model B tumbler using the slower and smaller motor. This is a heavy duty, professional quality tumbler, which features larger, more powerful continuous, fan cooled motor with overload protection. Steel hexagon barrel with removable rubber lining for long, efficient and quiet operation. 15 lb. capacity. 5 year guarantee on barrel and liner.