Has anyone had any experience with the Central Pneumatic's Earthquake 1/2" impact that Harbor Freight sells. I looking to upgrade the two weak 1/2 impacts I have; the pull bars I'm using are out doing these impacts on spindle nuts but my back problems are getting worse as I age. I have read that the twin hammer impacts are more powerful.
I know some things are good and other are bad from HF which why I asking. And I know there is more expensive models out there just don't want to break the bank unless I need to.