Product Info Catalog Abrasives Brush Wire 3-Inch Coarse Crimped Wire Cup Brush 3-Inch Coarse Crimped Wire Cup Brush Request a Quote UPC: 52088042519 SKU: 842663 Model Number: 842663 Master Mechanic, 3" Coarse Utility Crimped Wire Cup Brush, 1/4 Shank, For Use On Electrical Tools As Well As Drill Presses. 3,000 RPM Maximum Speed.