Radius Master RM48 7 in1 Multistation Series 2 Belt Grinder/Sander System unique design provides a multitude of functions via 7 work stations, each readily available in seconds and without tools, using an easy to operate index knob. Only the Radius Master brand of machines are capable of tracking the latest heavy duty polyester backed ceramic belts. 7 work stations provide a wide variety of surface finishing, intricate product de-burring, tube notching, profiling and precision sharpening of drills and cutters.