Features and Benefits:?Hyperwire? Construction for Faster Material Removal and Greater Life?Improved Design Reduces Wire Fatigue?Precision Construction Reduces VibrationThe bevel crimped wire brush is suited for general purpose surface cleaning and conditioning where the operator is likely to have an uneven surface. Milwaukee offers bevel crimped wire wheels in both carbon and stainless steel. The bevel brush is designed for use on 4-1/2 or 5 in. Milwaukee and competitive grinders with 5/8 - 11 threaded spindles. Made of carbon steel.