Single Spiral Brush, Dia 5.5 mm, Fill Type Silicon Carbide Abrasive Nylon, Wire Size 0.018/500 In, Max RPM 1200, Shank Size 0.110 In, Overall Length 3 In, Brush Length 1 In, Cross-Hole Deburring and Finishing, For Use With Hand, Drills, Drill Presses, CNC Machines, Package Quantity 12