100mm diameter x 16mm width x 20mm bore, 0.3mm Wire length The all-round brush for medium to heavy brush applications. Multiple row brushes are best for treating larger surface areas because of their wider face width. A special advantage of these brushes is the added choice of adaptors to fit most popular spindle diameters. Max RPM: 8000 This item comes with reducing bushes for 1/2"(12.7mm) & 5/8"(16mm) Price per 1 wheel.