Lumax Brand Grease Gun. Entry-level Grease Gun. Offers great performance at an economical price. Cast Head - develops up to 10,000 PSI (690 Bar) Heavy-duty Follower Spring for consistent priming). Contoured Lever - develops more pressure with less effort. Slip Resistant handle grip assures firm grip. Follower rod lock prevents accidental grease discharge. Rugged, wide band, non-slip knurling. Ergonomically designed T-handle provides positive grip. Outputs 5.2 oz. (150 g) of grease per 100 strokes. Complete with Four Hardened Jaws Hydraulic Coupler with Ball Check, Non-drip Cap and 6" (150 mm) Extension Pipe.