Dorian Tool 73310121530

3-1/4 Inch Long x 3/4 Inch Wide x 3/4 Inch High, Revolving Head Bump Knurler 1 Inch Diameter, 6.00 mm Knurl Face Width, 5/16 Inch Hole Diameter, 6 Knurls Required, Series M, Includes Knurl Wheels