Product review (4 stars): Good device, difficulties with 90 degree bends
Works well, I really like that I can hook up a drill to it (unfortunately, my drill was a bit underpowered to spin it at it's full length). I have the unfortunate luck of having my vent to the outside with a 90 degree bend part way through (stupid house designers), and I suppose the piping didn't guide it through all the way to the outside, so my only complaint is that this device couldn't accommodate a 90 degree bend.