This Edco CD-3 scabbler rental is easy to use. Simply move the scabbler back and forth using a side to side motion over the surface until the concrete is roughened or removed. A scabbler is the ideal machine for roughening surfaces for new overlays, creating wheelchair access ramps, creating non-slip surfaces, and removing loose or deteriorating concrete. Its scabbler bits pound the concrete surface by delivering 1,200 hits per minute, leaving a rough, textured surface. Sometimes referred to as a concrete surface cleaner or cement grinder.