Weiler Wheel Brush, Joint and Crack, 12 in Brush Dia, 3/8 in Face Width, 1 in Arbor Hole Size, Cable Twist Knot Filament/Wire Type, 0.035 in Filament/Wire Diameter, Steel Fill, 2-3/4 in Trim Length, 5000 rpm Maximum, Unthreaded Arbor Attachment. Weiler 12" Cable Twist Knot Wire Wheel Brush features heavy-duty construction and an extra long trim length for cleaning expansion joints and cracks in concrete and asphalt. 1" Arbor hole for use on walk behind machines. At Weiler, we passionately embrace change to improve our products and our processes to move the company and our customers forward. By bringing new ideas and creative problem solving together in an open, collaborative environment, we will improve our customers' productivity and create profitable growth. Weiler Abrasives is eager to create a collaborative partnership to overcome your toughest cleaning, grinding, cutting, de-burring and finishing challenges. Weiler manufactures precision brushes, abrasives, and maintenance products. The company was founded in 1898 in Germany, is headquartered in Cresco, PA, and is International Organization for Standardization (ISO) 9001 certified.