A heavy-duty side lever grease gun that develops up to 10,000psi from its limited short stroke action. A die cast head, an easy locking plunger, an ergonomic pump handle grip, a positive grip plunger handle, and a bulk loader with an air release valve, all combine to make this grease gun very efficient and easy to use. With a 500g (16oz) capacity the gun is filled by suction action. The four jaw hydraulic coupler ensures that the grease goes exactly where its needed at the press of the lever.