very cheap version of a porter cable by Campbell Hausfield. I had one day's experience with it. I would like to have had more but it could not handle nailing 1/4" panel board up and broke about 4 hours into the project. From the beginning it misfired like crazy.I sent it back and got a porter cable. More money but the job is done and it's ready for the next.I've had trouble with other Campbell Hausfield products before with the exception of the cast iron compressors. they are great