Round Tube Brush, Product Type Round Tube Brush, Stem Style Single, Brush Material Steel, Brush Dia. 1/2 in, Compatible Tube Outer Diameter Not Applicable, Stem Diameter 3/16 in, Brush Length 1 in, Wire Dia. 0.005 in, Overall Length 3 1/2 in, Compatible Tool Type Drill, Operating Speed - Maximum 2,000 RPM