Air-Powered Scabblers utilizes piston-mounted carbide bits to hammer concrete or asphalt surfaces, removing bulk material at penetrations up to 1/4″ per pass. These scabblers leave a rougher surface than concrete grinders or planers. The application includes removing spalling & oil-soaked concrete for new overlayments, ramping large slab differences, texturing parking deck & wheelchair ramps and producing slip-resistant surfaces.