Lifetime product, ideal for frequent greasing applications Patented feather touch design for minimal effort Most useful for greasing in confined spaces or where access to grease fitting is restricted Incorporates a unique variable stroke feature, not common with Pistol Grease guns. This allows the gun to reach increased greasing pressures from short strokes & high greasing volumes from full strokes Machined to very close tolerances with perfect fits Built tough: Robust barrel 0.049” (1.2 mm) thick, Heavy Duty Follower Spring, CNC machined grease gun head, large rolled threads for fast & easy re-loading Capacity: 14 oz. (400 gms) grease cartridge or 500 cc bulk fill Delivers 1.1/2 times more grease per stroke & at the same time generating pressures upto 7,500 PSI (517 BAR) Complete with 9” (225 mm) high pressure flexible hose & professional 4 jaw coupler with ball check 7,500 PSI (517 BAR) Variable Stroke No False Lubrication Cartridge Loading Suction Fill Filler Pump Loading