Weiler 3″ Polyflex Encapsulated Stem-Mounted Crimped Wire Wheel Brush features an encapsulation that gradually wears away to expose a consistent short trim for higher aggression, controlled brushing action and longer life. Although they can also be mounted onto a drill, the speed and power of that tool will decrease the effectiveness of the brush. 1/4″ stem for use on high speed die grinders. Featuring Weiler’s solid ring construction, these radial brushes are available in heat-treated steel, type 302 stainless steel and brass wire for use in a wide variety of applications. Feature an encapsulation that gradually wears away to expose a consistent short trim for higher aggression, controlled brushing action and longer life. Crimped wire wheels with a permanently-attached 1/4 in stem or shank are primarily intended for use on high speed die grinders. Although they can also be mounted onto a drill, the speed and power of that tool will light weight 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. .