Weiler 2" Stem-Mounted Concave Crimped Wire Wheel provides a flexible brushing action for addressing corners and hard-to-reach areas on steel. 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 decrease the effectiveness of the brush. Featuring Weiler's solid ring construction, these radial wheels are available in heat-treated steel, type 302 stainless steel and brass wire Engineered and manufactured to maximize performance and minimize operating costs in the most demanding surface conditioning applications. The use of superior construction, the highest quality materials and the most stringent manufacturing processes deliver the lowest cost-of-use and most consistent performance in heavy production environments. Made in the USA.