Festool USA provided a RO-90 DX multi-mode sander for me to review. This is the newest sander in the Rotex line and combines the features of the older DX-93 sander. Clip 1 is the review discussing the sander. Clip 2 is a demo of its use stripping oil-and-varnish finish from a Teak door I am refinishing. This clip ends with a side-by-side demo of the RO-90 in delta mode against the DTS-400 sander for comparison. Clip 3 is a demo of its use stripping and sanding rails, stiles, and 'flats' of a large Oak cabinet.