Product Info Catalog Abrasives Brush Wire 4-Inch Coarse Crimped Wire Wheel 4-Inch Coarse Crimped Wire Wheel Request a Quote UPC: 52088042656 SKU: 842804 Model Number: 842804 Master Mechanic, 4" Coarse Crimped Wire Wheel, 3/8" 1/2" Arbor Size, For Use At Speeds Up To 4,500 RPM.