The main advantage of this long-throw machine is pad rotation. A pad that rotates in a larger orbit does more work per pass, your liquids are more effective, and you get results that surpass expectation. THE BOSS G21 has a 21mm orbit, which represents a 162% increase in orbit throw compared to a conventional orbital's 8mm throw. THE BOSS is the most innovative orbital ever. Griot's Garage is the first to integrate a fully variable trigger that allows the user to throttle the tool from a dead stop to the maximum dial setting incrementally throughout the sweep of the trigger. This acutely focuses the control you have over the tool and your ability to create a truly flawless finish. This tool is built right using the best of the best. Packing 900 watts of muscle, BOSS orbitals are the most powerful on the market. Their advanced, precision-machined steel counterbalance is a cut above and they use NSK™ bearings, the best in the world. The more aggressive G21 is set up for our BOSS 6" pad system and is recommended for professional detailers.