Norton 38882, Knot Wire End Brush, Shank Size 1/4"

'End Brush, End Brush, Bristle Type Knotted Wire, Brush Dia. 1 In., Abrasive Shank Size 1/4 In., Wire Dia. 0.014 In., Bristle Trim Length 1 In., Abrasive Material Carbon Steel, Max. RPM 20,000, Overall Length 2-3/4 In.'