I have a bunch of BUFFALO air tools. These are a cheap brand like anything else. Inline sander, air ratchet, air chisel, etc and now have Harbor freights Die grinder, angle grinder, D-A. sander, couplers, compressor twin cylinder pump, stud welder, butt clamps welding wire etc, etc etc. If you don't have a pro shop and want to save money, get them. If they break, buy a new one then stick the old one in the new box and return it. The only one that broke in 25 years was a D-A sander that broke it's on/off air valve after about 7 years.