Weiler 44074 0.012" Wire Size, 5-1/2" Length, 1-1/4" Face Width, Steel Bristles, Metal Chip Scratch Brush. Weiler’s extensive Scratch Brush offering includes many block and handle types and sizes. The wide variety of fill materials available assures the right brush for the right job. Common applications are cleaning dirt, rust, scale, chips and paint; plating and welding operations.