Simply press the level to lock and release the grease coupler, it saves lots of time compared to the traditional coupler. The quick-connect coupler is obviously larger and longer than a traditional coupler, the super tight spot can be hard to maneuver, but retracted grease fittings are easier if 11/16" OD can fit in.
【Lock and Seal up to 14,000 PSI】Reinforced jaws and quality sealing gasket ensure long-lasting and stable performance, and prevent leakage even at 12,000 PSI extreme pressure.
【Robust Build Quality】 Built with premium quality Zinc Coated Alloy Steel for all-day performance in the shop or garage, heavier and stronger than any other grease couplers on the market.
【One Hand Operation】Smooth retraction mechanism allows one-hand operation. Once the grease coupler is locked on zerk fitting, it stays on and frees both hands to operate the grease gun.
【Unique Design Help Locating Zerk Fittings in Dark】The unique and patented Retract Mechanism pulls back the inner seal and leaves the outer socket ring wide open, which helps locate zerk fittings at the blind spot.
【Compatible with All Grease Guns and Zerk Fittings】1/8 NPT fits all standard grease guns and mini grease guns. It also fits all DIN and SAE grease fittings, simply replace your existing grease gun couplers.