The Vevor grease gun coupler set is designed for fast, secure lubrication with a 3-jaw locking quick-release design. It is compatible with grease guns using 1/8-27 NPT fittings, including manual, electric, and pneumatic models. Built from spring steel and #45 steel with a nickel-plated finish, it is made to handle pressures up to 10,000 PSI while helping reduce leaks. Its compact size and one-handed operation make it easier to use in tight spaces. The set also includes helpful accessories for cleaning and reaching difficult grease fittings.