Professional Pistol Grease Gun • Premium Heavy duty model. • Die cast pump head for strength and durability. • Knurled barrel for a non-slip grip. • Convenient one hand operation. • Uses standard 14 oz. grease cartridges or can be bulk filled. • Working pressure: 4,500 psi, develops up to 7500 psi. • Plunger stopper mechanism holds follower rod firmly in place for easy cartridge replacement. • Includes 16” flexible hose with a protective rubber cap, coupler and bulk filler nipple. • Variable stroke feature. • 3 Way loading: filler nipple, bulk, cartridge