Unique Design-Upgraded grease gun coupler have the unique and patented Retract Mechanism pull back the inner seal and leave outer socket ring wide open,which help locating zerk fittings at blind spot
Robust Build Quality-This high quality grease gun coupler built with premium quality zinc coated alloy steelfor for all-day performance in the shop or garage,heavier and stronger than any other grease couplers on the market
One Hand Operation-Grease gun coupler with smooth retraction mechanism allows one-hand operation;No need to hold while greasing,after locking the grease gun coupler,you can free your hands to operate the grease gun
[One-Hand Operation]: Inwell Grease Gun Coupler uses a unique and patented retraction mechanism, specifically designed for one-handed operation; It's convenient and easy to use