"Delux way of preparing pipe ends before jointing. Half a dozen twists and you're done. Yes, there are lower budget deburring tools out but not one that gives such a good end result. A bit earlier to determine long term durability but if it is by Rothenberger, I don't need to worry."
"Seen one working and used it myself, deburs and cleans the tube for soldering, not cheap but saves the wire wool in the fingers and looking for the debur tool, a couple of twists and your done, flux on, fitting on soldered. Pricey but a great tool"