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.

Wish I would of got one sooner! Works great.

Nothing, to not like about this tool. Worked flawlessly right out of the package. The complete rebuild kit was included as well. Now I will enjoy using it, and see how the longevity is.

If it was smaller could get in tighter areas

Works well

Works very well. I use it on some fittings that I struggle taking the fitting off. This makes for easy removal and doesn’t pop off when in use. I really like it.

Great little tool so far . for $30.0 i hope it last a life time

purchased this for my husband and he just loves it. He says it makes his greasing jobs fast. easy and alot less mess.

If you have to grease it, lock it in place, very nice tool, doesn’t work everywhere but most

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

It locks and holds ok , but the total length is much to long to be used for all locations. Needs to be much shorter or made flexible or with an angled tip of some sort. Just can’t be used for zert locations.