The Weiler 3-1/2" Crimped Wire Cup Brush with a .014" steel fill is a high-quality metalworking tool designed for precision and efficiency. Made in the United States, this brush features a 5/8-11 arbor hole for easy mounting on rotating equipment such as lathes or drill presses. The crimped wire design allows for aggressive scrubbing action, while the steel abrasive material ensures durability and long-lasting performance. Ideal for a wide range of metalworking applications, this cup brush is a reliable and versatile option for professionals in various industries.