Powerful motor delivers up to 10,000 PSI of Max pressure Features two speed modes; Low and Auto-Speed for better control Auto-Speed mode applies grease while varying the flow rate automatically matching the resistance of the part being greased Variable speed trigger allows the user to adjust discharge rate Lock-on button for user convenience during longer work periods Maximum flow rate of 10 fl. oz. per minute for faster work 47-1/4 flexible hose offers greater access for difficult to reach fittings Air bleed valve assists in faster pump priming Built in twin L.E.D. lights with separate switch helps locate hard to see grease fittings in low light Weighs only 11.3 lbs. with battery for reduced operator fatigue Stand up design and shoulder strap provides increased comfort on the job Equipped with Star Protection Computer Controls to protect against overloading, over-discharging and over-heating Compatible with Makita 18V Lithium-Ion batteries with a Star symbol 3-year limited warranty on tool, battery and charger Only use genuine Makita batteries and chargers