The grease gun coupler has a powerful 6-jaw coupler. The reinforced claws and high-quality sealing gasket of the grease gun coupler ensure a long and stable performance, which will prevent leakage even at 12000 PSI extreme pressure allowing you to work efficiently.Superior MaterialThe oil gun coupler is made of upgraded stainless steel. It is made of high-quality steel, which is wear-resistant and durable. And it has good spring elasticity, ensuring smooth sliding and stable performance during use. Aerospace-grade silicone pads can better prevent leakage.One Hand OperationOur grease gun coupler is upgraded to a double handle, which can be operated with one hand & save 50% effort, ergonomic. The corners with small operating space can also be reached and locked with one hand.Quick Lock and ReleasePress the trigger and connect it to the required oil gun accessories. The lever action mechanism locks the coupling on the oil gun to form a leak proof seal on the joint. Press the trigger again to release without twisting or jerking.Wide ApplicationHeavy oil gun tools are used for vehicle maintenance, large machinery and axle transmission systems, and are also very suitable for lubricating agricultural tractors, plows, pile pullers, seeders, etc. It is an ideal choice for mechanical lubrication in any workplace such as construction sites, mines, farms, etc!