Designed for precision and efficiency, this 4-inch diameter Stringer Bead Wheel Brush from Anchor Brand is an essential tool for weld cleaning and tackling hard-to-reach areas. Crafted with 30 knots of durable stainless steel wire, the brush features a narrow face width of 1/4 inch, making it ideal for intricate tasks that require meticulous attention. With a robust arbor diameter of 5/8 inch - 11, this wheel brush is not only effective but also designed to withstand rigorous use, ensuring longevity and reliability in various welding applications. Please note that, as with many metalworking products, this brush may expose users to nickel, a chemical recognized by the State of California as a potential carcinogen.