Homeowner cheapo type tools. Extremely underpowered compared to other cheapo brands. The HF Earthquake is only a few bucks more, possibly the same with coupons, and puts out 700 ft lbs vs the Poweyte at 500 ft lbs. I don't own any HF air tools so can't say how great they are, but would go with that over the Powryte for sure. I would go with a used truck brand unit off eBay before either of those though... Or a new Aircat for a little over $100.