At 3,000 orbits per minute, the OBS18DC sands faster than any other orbital sander available. Because of the random-orbital action the OBS18DC removes the scratch patterns that is normal for drum or rotary sanders so that the sander will leave a smooth, flat floor ready for refinishing. The torque-less operation allows for operator comfort. The OBS18DC is perfect for interim “screen and recoat” and fine finish sanding jobs. Above all the heavy duty cast aluminum main frame and pad driver plate provides added strength.