I've spent allot of money on air grease guns and have come to the conclusion that they are all junk. I've bought Lincoln, Sears, Napa, Northern and a few other brands that escape me right now. If I'm lucky, I can get a year out of it and a dozen cases of grease through it. Some don't last a dozen tubes of grease. While I'm open to the idea that it's just me, and I'm doing something wrong, I've also realized that air greas guns are not worth the hassle or expense of owning them.
Getting the hose out and fighting it is a pain. Putting it away is a pain.
Getting halfway through a tube of grease and getting an air pocket in the tube is a pain. Opening it up and getting it to work again is a pain.
I prefer solid tubes over flexible ones, but I need both. I kept the air guns with a solid tube and a hand pump with a flexible one. Now I have two hand pump grease guns. One with a solid tube and one with a flexible one. I don't have air pocket issues, I don't fight the grease to get it to work and I don't mess around with an air hose.
In trying to find a faster, easier way to grease my tractors, and I have three plus a dump truck, I spent more time and energy then just grabbing a grease gun and getting it over with.
I still might try a cordless gun, but really want to try it out from somebody who has one before spending the money on it and being disapointed.
I never seen the cordless drill model before. I wonder how it works? Does it create a vacume to suck the grease out? or does it work on the spinning of the drill to drive the grease out? If it's a direct drive type of action, I might be interested. It seems to me that would be foolproof if the parts were of decent quality. The weight might be an issue, but then I could easily use two hands for most of it and move right along.
I'm also curious if somebody has bought it and how it's worked out for them.
Eddie
but maybe this discussion will help someone else.