The extensive scratch brush offering includes many types and sizes of block and handle. The wide variety of filler materials available ensures the right brush for the right job. Common applications are cleaning paint and dirt rust flakes; plating and welding operations. Ideal for removing rust and paint incrustations from metal surfaces. With scraper. Specifications: Block length: 14 inches. Block Width: 7/8 in. Bristle Material: Steel Bristle diameter: 0.0120 inches. Brush Length: 5-1/2 in. Bristle Rows: 3 x 19. Trim Length: 1-3/16 in. Handle material: Wood. Handle type: Curved. Applicable materials: metal.