Experience quick and flexible connection and is also equipped with a proprietary locking & quick release mechanism. The coupler locks on and creates a leak resistant seal with hose attachments. The quick release coupler is firmly attached to the grease fitting, enabling hands-free greasing. No longer do you have to fight or struggle to get the couplers to fit. If the fitting becomes pressurized, you can simply depress the thumb level and then release the 90 degree coupler. No longer do you have to deal with old broken fittings. You will have a clean working environment 24 hours a day with the use of our tools. Our cordless grease coupler will get rid of your greasing frustration. Once greasing is easier to do you are more obliged to do it more often. Regular greasing using grease accessories enhances auto machine life. We are aware that greasing can be a messy job but we have the power to remove the frustration. You also have the option to upgrade your grease gun using our grease gun extension. Deep fittings and refills will no longer be a problem. You will know when the grease gun gauge is going in even if it is that you cannot see it. Push down the pipe level to release the coupler.