LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in, not on the machine. Worlds best-selling original locking grease coupler. Rated 10,000 PSI. Long-lasting rebuildable tool.

Great addition to a grease gun. A must have!!

Great product. Does as advertised. On time delivery......

Great product. Doesn’t wear out like the normal tips. Doesn’t waste as much grease either.

One of the best grease gun fittings ever

Does what every grease monkey wants done. It stays in place and the grease goes where you want it to.

Great tool. I just wish I had got one sooner. I use it on everything, tractors,snowmobiles, mowers. It is fantastic. Get yourself one!!

I own a tractor with recessed zerks in the loader so they cant be sheared off. Greasing these types of zerks are very difficult and sometimes causes you to break them off trying to get the grease gun off. I heard about this adaptor on a internet forum with great reviews so I gave it a try. This adaptor is awesome and makes getting these recessed zerks greased a breeze. I did find a few that getting this adaptor to release the zerk a bit tough, but there may just be a trick to it I havent discovered yet. And as a bonus - they now include one rebuild kit for when it wears out. Worth the money - do it!

Works great just what I wanted

Works much better than regular zerk gun fittings. Makes it easy to remove without risk of breaking the fitting.

My husband loved it, not hurting his knuckles anymore.