The Threaded Beveled Brushes Knotted Combo 020CSxM14 4 1/2" is a versatile tool designed by Pferd for metalworking applications. With a wire diameter of 0.005 inches and a brush diameter of 4 1/2 inches, this cup brush is perfect for tasks that require precision and efficiency. The knotted wire construction ensures durability and optimal performance, making it an essential addition to any workshop or industrial setting. Suitable for use with threaded arbors, this brush offers convenience and ease of use for a wide range of projects in CNC, metalworking, and manufacturing industries.