The RO 90 DX is the newest addition to Festool's line of Rotex sanders.
Switch from aggressive mode to random orbital mode with the flip of the wrist.
Watch the video below to see the power of the RO 90 DX sander's aggressive, gear-driven mode. It can be likened to the sanding action of a belt sander and removes thick coats of paint and other materials quickly and easily. A quick turn of the mode selection dial puts the sander into its random orbital mode, perfect for finish sanding.
Switch between a round pad and delta pad in seconds.
What good is having a sander that transforms from a round pad to a delta-shaped pad if it's a pain to do? Well, with the RO 90 DX, you can swap between these two modes in a matter of seconds without the use of any tools. Switch the sander to Delta mode with it's mode selection dial. Give the round pad a twist to remove it. Then twist the delta-shaped pad on. That fast and you're ready to conquer some corners!
Round or Delta, You Decide
Switch between a round pad and delta-shaped pad in seconds, no tools required. Conquer corners just as easily as you work quick work of open spaces. In delta-mode, enjoy the power of an aggressive gear-driven sanding action. With an optional extended delta-shaped pad, you can reach between louvers and into other narrow spaces.
Edge Protector
The edge protector snaps onto the front of the sander quickly and easily, no tools required. It's designed to prevent incidental contact with adjoining surfaces. Have you ever dinged a piece of material trying to get into a corner? With the edge protector, you can get right against an adjoining surface with confidence.

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