Hum-B profilers are surface scarifiers designed for preparing concrete, terrazzo, stone, and masonry. They also remove paint, adhesives, and epoxy floor coatings. Available in 6-, 8-, and 10-inch configurations with zero depth height adjustment, a central drum assembly provides good balance and minimal vibration. A heavy-duty hex shaft, sealed bearings, and toothed belt make for a durable machine. CDCLarue Industries Inc. 866-954-9700.