Upgraded Grease Gun CouplingGrease gun features 30cm blue spring hose, upgraded 6-petal heavy duty design, reinforced jaws and high quality seals, ensuring long lasting and reliable performance. Its sealing properties have been rigorously tested and proven to perform well even under extreme pressures of over 10,000 PSI. Premium Quality & Heavy DutyOur locking grease gun coupler is made of high quality galvanized alloy steel and features thicker springs that ensure exceptional locking force. The grease gun of the fitting is made of high quality resin and prevents hose bursting. The grease gun is compatible with all universal metric interfaces on the market, including M6/M8/M10/M12/M14. Multi-purposeThe grease gun quick connector is compatible with a variety of grease guns, including pneumatic, manual and electric models. By simply replacing your current grease gun coupling, this heavy-duty tool can be effectively used in automotive repair locations involving large machinery, axles and transmissions. Its ergonomic design with a handle ensures easy handling and quick operation. 6-Pin DesignThe upgraded grease gun coupler provides improved durability and longevity, ensuring quick and effortless locking and draining of grease. The high-quality seal of the coupler eliminates the need for constant monitoring during refueling and prevents leakage from the locking tip of the manual grease gun.