Intended for use by technicians seeking fast, smooth operation, the 600 is a "Value Added" sander offering American-Made quality at an Import price. The 3/16" offset delivers aggressive material removal with comfortable low vibration operation. Its reliability and performance makes this a top choice among professionals from all sanding industries. (Model 600H with 6" velcro pad); 3/16" Offset Random-Orbit Action Sander; American-Made; Aggressive Material Removal; Light Weight, Ergonomic Design; Designed to use either 5" or 6" pad