The high-speed Model B tumbler is a large-capacity, heavy-duty, commercial-grade device commonly utilized by gun shops, reloading enthusiasts and handloading experts. It features a 15 lb capacity barrel capable of processing approximately 250-round of 30-30 caliber or an equivalent quantity of other calibers within 3 to 4 hr. The Model B rock tumbler is a robust rotary tumbler with a 15 lb capacity barrel, designed to transform about 10 lb of rough material into polished gemstones. This tumbler is ideal for individuals who wish to process large volumes or larger pieces of rough material. It is particularly popular among those who collect their own rough materials. The motor and metal base are coated with a powder finish to resist rust and chipping and the motor is equipped with thermal protection to prevent overheating. Operating at 1550 rpm, the motor is optimally suited for tumble-polishing rocks in this size barrel. Commercial-grade, heavy-duty rotary rock tumbler High-capacity - capable of processing approximately 10 lb of rocks Thermally protected motor operating at 3000 rpm Constructed with a robust metallic base and a precision-engineered metal barrel Powder coat paint exhibits superior resistance to chipping and corrosion, ensuring enhanced durability and longevity of the coated surfaces Acoustic-dampening elastomeric barrel liner engineered for noise-reduced functionality The metal lid, in conjunction with the precision-engineered rubber gasket, ensures a hermetic seal to effectively prevent fluid leakage Barrel with effortless opening and closing mechanism Simplified maintenance Engineered for long-term durability Thumler's offers a one-year limited warranty, providing coverage for manufacturing defects and workmanship issues under specified conditions, ensuring product reliability and customer satisfaction