Avenger Buffer A robust Multi-use 17" Buffer machine for regular maintenance as well as grinding and polishing with an optional 10" Backer pad that can be used for stairs and edging. It has been designed for heavy duty applications. With an innovative 2.5 hp motor, makes it the most powerful single disc floor care machine.The ideal floor machine for grinding and polishing medium to large areas in marble, granite, polished concrete floor, conglomerate, stone, industrial surfaces, cement, Porceline, terracotta, etc. Thanks to its great range of available accessories it can solve lots of problems in the least expensive way ALL GEAR DRIVE! ALL ALUMINUM CONSTRUCTION!