... change drum 3,Non dust operation 4,Chip away concrete,asphalt,epoxy concrete planer Scarifier, also called floor milling machine,or floor ... flails, at high speed to chip away the surface of concrete, asphalt, and epoxy. Different style of interchangeable cutter achieves the ... . Quick-change drum design allows you change cutter in minutes.concrete planerFeatures: A series of models: 9hp, 13hp, 20hp, 38hp ...