This is a unique sander: a hybrid of a pneumatic palm sander and an electric random orbit sander. A DC motor unit generates the power, but from a distance.
The sander itself hooks up to the motor unit with a 10’ cord, so the motor’s well out of the way. The sander then operates just like a pneumatic sander with ROS function. Aggressiveness: The CEROS is reasonably aggressive, but we expected it to be more aggressive given the nature of pneumatic sanders. Finish quality: Boards were sanded to 220 grit before all scratches and swirl marks disappeared; reasonable enough. Dust collection: This unit does not come with a dust bag or vacuum hose, and its unusual port (tucked under the handle and with an inside spiral fastener) makes it nearly impossible to adapt another hose to it. Mirka's hose sells separately for $40. Not a good setup. Vibration/Comfort: This is a really smooth, lightweight sander (no motor, less weight) with low vibration. The power paddle switch sits on top of the sander and is easily pressed with the palm of your hand while gripping the sander by its “mushroom” top. For a large hands the top proved a little too small, though, so long periods of sanding proved more uncomfortable than shorter ones. Also, there’s no lock button for the switch, so you have to keep it pressed down. Other factors: It has electronic variable speed in two modes: paddle controlled (like an accelerator on a car) or push-button controlled with the switch being either off or on. Both worked equally well, but occasionally as our grip grew tired we’d inadvertently let up and the speed would decrease. The sanding pad on this one had the hardest time of the group at gripping some discs, and some even flung off when lifted off the wood surface. The pad had the most options, with both 6- and 8-hole disc patterns and lots of small holes for use with Mirka's Abranet mesh discs. It has a test-longest 10-second pad stop time.



Average: 4 (1 vote)


Average: 4 (1 vote)

Ease of Use

Average: 3 (1 vote)


Average: 2 (1 vote)
out of 5