I use many tubes of grease per year on the farm. I hear on el cheapo grease
guns.

I don't know the brand name, but I bought one from the Snap-on truck (brand
of tools). You would not believe the difference!!!

I got the same story with screwdrivers. I used to just buy Sears Crapsman.
After using a couple of the high grade units, I won't go back.

You gets what you pays for.

Karl