I am looking to buy a tubing roller for round and/or square tubing maybe up to 1-1/4 or 1-1/2" capacity. I have seen these 3 wheeled tubing rollers and that is most likely what I will buy but I have a few questions. Are those cheap one junk or do they do the job like the high dollar ones? For example I found this one:

And it looks like about what I need. Anybody have one of these? My next question is what is the smallest full circle diameter one could expect to make with this and finally, can these easily make repetitive items once you set it or is the pressure wheel have to be gradually tightened each time?