Milwaukee 2584-20 M12 FUEL 6" Random Orbital Sander, 3/32" Orbit, 3,200 to 12,000 Revolutions per Minute, Bare Tool. M12 FUEL 6" Random Orbital Sander 3/32" (2584-20). The M12 FUEL 6" Random Orbital Sander can also be referred to as cordless random orbital sander, Milwaukee 2584-20 sander, 6" orbital sander, paint technician sander, and M12 sanding tool.