Hard-wearing wire cup brushes, suitable for ultra-heavy duty, aggressive cleaning of large surface areas. These brushes have a steel bridle or 'ring' around them which as two functions: to hold the twisted-wire in place and minimise any centrifugal-splay when in use. As the brush wears down, the bridle can be 'hammered-off' exposing a further 20mm+ of twisted wire. This extends the service life greatly. For use on 180mm and 230mm angle grinders
