Norton 39035, 4" x 5/8-11 Knotted Wire Wheel, Twisted, Carbon Steel, Pack of (4)

'Wire Wheel Brush, Wire Wheel Brush, Bristle Type Twisted Wire, Brush Dia. 4 In., Mounting Type Arbor Hole, Arbor Hole Size 5/8 In.-11, Abrasive Shank Size No Shank, Wire Dia. 0.020 In., Bristle Trim Length 7/8 In., Abrasive Material Carbon Steel, Face Width 1/2 In., Max. RPM 20,000, For Use With Horizontal Straight Shaft Portable Grinders'