AZUNO Grease Gun Coupler, 2nd Generation Upgraded to 12,000 PSI, Grease Gun Tips Quick Lock and Release, Compatible with All Grease Guns 1/8" NPT Grease Gun Fittings (Grease Gun Coupler 1pcs)

If you are a pro and beat up your tools, you ,ay even want to consider this grease gun. For a person who does their own maintenance on their vehicles and only needs to use this once or twice a year - this is an easy buy recommendation. The price is excellent. The tool is well made. the components that come with it are well made and fit exactly what I needed for motorhome greasing. You can use the manual grease gun, but this makes the job so much easier. attach to the grease fitting, pull the trigger and in seconds the task is done. You can be pumping that handle of your old grease gun for quite a while and I'll probably be done with all of mine before you finish a few of the grease points. The fit and finish of this air tool is very good. Loading the grease tube is easy, everything just works well.

I haven’t had these locking couplers long but so far they do the job just as expected! They hold onto the zero fittings well and don’t leak. Releasing is simple and can be done even under pressure.One thing to keep in mind is clearance around protected fittings. This coupler body is larger than a standard non-locking coupler so it may not fit into every nook and cranny you find in the field. T hear being said, it fits on all the protected fitting on my tractor and implements.The price is a bargain too considering what the big name company is charging (I got 2 Azuno couplers for what 1 LockNLube coupler costs). I will continue to use these on my grease gun and update my review if necessary. Thanks Azuno!

Terrible grease gun. Can not purge the air out of it and yes I know how to purge air from a grease gun, i do it all the time. This one doesn't let you rotate the plunger rod to get the bent rod and behind the plat to push the grease and purge the air. I'm tired of trying and mine is now in the dumpster. Garbage grease gun.

I purchased a couple of these guns since they appeared to be a bit better than the local Home Depot variety. One is set up for standard grease, the other for high temperature grease (used on machinery). The first gun set up flawlessly, the second took a bit of work to start due to air. Both have performed well on home gym bearings, machinery, trailer axles, tractor joints, etc. I haven't noticed any major issues, but I am a bit suspicious about how long the universal snap on adapter will last. All in all they are holding up well to date.

Works as advertised! Easy installation and even easier to use! Now I don't break off zerks.

Update: I have used this several times now and it may not be as good as I originally thought. I had several fittings where grease leaked by around the fitting. One major issue is this coupler definitely will not work in tight places. I have fittings that are very close to the hub and there is not enough room to fit the coupler onto the fitting. Was considering a return but noticed I missed the return window.When I opened the box I thought this was another item because of the weight. However, these couplers seem to be heavily built. I tried it out today and it worked as they said it would, clamped on and allowed no grease to leak by. I bought this to replace another brand coupler that leaked and it seems it is worth the money.

Ok so I’ve had this grease coupler for about a month I believe and I’ve used it for greasing heavy duty vehicles from tractors, trailers, straight trucks, etc. first I’ll start with the pros of this coupler, it does feel sturdy and decently built and one thing that sold me on buying it was how descriptive they were on the build so I don’t question the build quality too much. I also like the design to be able to locate a zerk fitting by having the jaws semi retract when you squeeze the tab.Onto the cons in my opinion, first and I believe the biggest is the issue with locking onto a fitting and having a good sense of feeling as tho it is locked on. Plenty of times I will feel locked on and then squeeze the trigger and it’ll pop right off the fitting and make a mess. Also the size of the coupler posed an issue for me a couple of times with grease certain U joints and king pins, and certain lift gate fittings. The shear size of the coupler just would not get into the spots needed to complete the job with the overall diameter of this coupler being semi large to me. Outside of the issues I still continue to use it and it is much better than a standard coupler and I would recommend it but hope in the future they improve on this design

This tool works great once you get it primed. I had to scoop a little grease out of tube and shove it down the suction hole in the head when I initially tried to use it. But after that it has been working great. The stiff, straight metal pipe works great with the conical tip. The conical tip, I have been using for low-profile zerks, such as the type you would find on lower balls joints where there is no room for a standard zerk fitting. They look like little concave buttons. Also, I use it lube my chainsaw bars. I like the clamp-on fitting too. Won't come off the zerk until you press the lever. This frees up my other hand to hold the body of the gun while I pump with the other hand. Although I did install the hose and clamp on an older gun that I have. This enables me to have two guns ready at the same time. A real time saver! I whole-heartedly recommend this gun!