2646-20 - M18 Cordless 2-Speed Grease Gun (Tool Only)Milwaukee Tool 2646 20 M18 Cordless 2 Speed Grease Gun (Tool Only) The M18 Cordless 2 Speed Grease Gun delivers maximum pressure and unmatched versatility, offering an industry leading 10,000 PSI max operating pressure and a patent pending pre set grease counter that allows service and maintenance professionals to dispense precise amounts of grease. The tools 2 speed design offers users the ability to select between max pressure and max flow rate.