5″ x 5/8″-11 HP, .020 Carbon Wire Wheel, Stringer Bead, Highly Specified Wire Grades Are Constructed With Internal Holding Plate To Ensure Consistency & Safety, Constructed For Even Balance Which Provides Smooth Performance, Knotted Wire Is For Heavy Material Removal, Crimped Wire Provides Flexibility For Light Removal Of Rust & Paint & General Cleaning.