Roto-Stripper quickly removes paint, varnish, rust and corrosion from surfaces including concrete floors. Used to remove paint and adhesives from concrete floor before installing the SealOnce Basement System. We only recommend using a drill attachment that will knick at the surface to remove paint/adhesive – do not use any chemicals to remove paint from floor. Fits any 1/4″ electric tool. Directions: Work tool so fingers lightly touch surface. Recommended drill speeds: 1600-2500 RPM. Tool is designed to operate in right hand rotation direction only. For best results, as surface begins to come off, move tool slowly along.