I have had nothing but good luck with the harbor freight flange tool.
I have had mine for over 5 years now, it has put alot of 1/4 panels and patch panels over the years.
Either the quality of them hit rock bottom, or maybe you air compressor is saturating the air lines with water.
Moisture is hard on any air tool, I have three water catches on my air line, (hard plumbed in the garage). So I do not have a moisture issue.