All machines come standard with service alert (hour) meter, 360° floating swivel spin-on pad driver, adjustable handle, and aluminum safety-fill fuel cylinder with overfill prevention device (OPD) (UL and DOT approved). 12 volt battery starter. No need for high voltage electric cords and generators. Run time is 5 to 6 hours per propane cylinder. Emissions protected by three-way catalytic muffler and automatic shut down system. Options include electric clutch or kill switch and Easy Gloss Spray system.Note: All engines exceed Environmental Protection Agency (EPA) and California Air Resource Board (CARB) regulations for exhaust emissions.