Weiler Wheel Brush, High Density Medium Face, 8 in Brush Dia, 7/8 in Face Width, 5/8 in Arbor Hole Size, Crimped Filament/Wire Type, 0.0118 in Filament/Wire Diameter, Steel Fill, 1-1/2 in Trim Length, 4500 rpm Maximum, Unthreaded Arbor Attachment. Weiler 8" Maximum Density Crimped Wire Wheel Brush features increased fill density for greater brushing action, longer life and consistent performance in the most demanding applications requiring the flexibility of a crimped wire wheel. 5/8" Arbor hole for use on bench/pedestal grinders. 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.