The Harbor Freight 20V Cordless Variable Speed Grease Gun is designed to deliver 5 oz./min of grease at 10,000 psi for smooth, precise, and continuous grease flow. The 48' flex hose with anti-kink spring guards delivers maximum reach for lubricating hard-to-reach fittings in automobiles, RVs, construction equipment, and agricultural equipment. The 14.5 oz. stainless steel barrel cartridge with non-flip follower accepts cartridge or bulk grease and includes a built-in hose and coupler storage.