Weiler 3″ Narrow Face Stem-Mounted Crimped Wire Wheel provides a flexible brushing action for cleaning and deburring applications on brass, aluminum, bronze, copper, high-nickel alloys, inconel, pewter, platinum, silver, stainless steel, titanium, tool steel and rubber. The permanently-attached 1/4 in stem are intended for use on CNC,/Milling/Automatic Machines, Die Grinders, Drills, Drill Presses, Right Angle Die Grinders and Straight Grinders. Although they can also be mounted onto a drill, the speed and power of that tool will decreaset the effectiveness of the brush. Provide a Very Flexible Brushing Action. . . . .