Lincoln Electric knotted wire wheel brush has industrial, professional quality and it provides many hours of service. It resists corrosion for enhanced durability and should be used where contamination or after rust is a problem. This brush can be used to reduce discoloration on stainless and aluminum alloys. Sturdy construction for work on tough jobs. This stainless steel knotted brush with adapter and threads allow for changing the arbor size of the brush. Great for cleaning rust, scale, dirt, weld spatter, plastic and rubber. Made from high-carbon tempered wires for long life. 0. 014-inches wire size. 5/8-inches x 11 UNC arbor hole. 1/2-inches face width. 20000 rpm maximum speed. 4-inches diameter.