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

Works great... Way better than the original grease coupler... i should have bought one sooner. would have saved me some headache.... i definitely recommend you buy one.... it locks on well. and easy to use.. no leaks. and fits well

Works great, little big for tight spaces, good quality

Using on a Milwaukee M18 grease gun. Works as claimed. Larger diameter tip makes some zerks more difficult to grease due to limited space. However, one handed operation is very nice and worth it.

worked great. no excess grease

Worked excellent on auto grease fittings but on my boat fittings it couldn't seal and get grease in. Maybe the boat zerks are too old but grease didn't go in just went all over the outside but overall seems to be a very nice piece.

Excellent product. I have a few grease fittings on my boat that are very difficult to see and even harder to reach. A regular grease coupling kept coming off making lubrication impossible. With the LockNLube Grease Coupling I can reach into the small space and lock it on. It stays connected with no grease leaking out. I will not need another grease coupling ever again. Quality product worth the price.

When I purchased my first new tractor earlier this year, brand new, I began the process of learning a whole new set of maintenance tasks - including notably re-greasing a dozen or so grease fittings on my grapple every 10 hours of operation. The threat of breaking a zerk isn't appealing at all, and wrestling repeatedly to have a good connection with limited waste seems unnecessary. This tool is super easy to install, super easy to use, seems well built, doesn't seep, and worth every penny.

This thing really works! I highly recommend!

非常に良い製品です。

Does what it's supposed to do, nice.

सुपर गुड

As described.

Exactly as described. Very good product