PFERD standard twist single row knot cup power wire brushes with external nut. For use on large surfaces where a great deal of roughing is required. Good for corners and angles, and removal of contaminants such as scale, concrete, slag, and marine growth. Suitable for use on stationary machines and angle grinders. Cup brushes are built with high quality components that are designed to perform in welding and industrial applications. Great cutting action and flexibility, excelling on large flat and curved surfaces. 1-1/4-inches trim length. 5/8"-11 thread size. Provides excellent abrasion and wear resistance, along with high flexing action. High strength filament able to remove heavy buildups. Good bend recovery. Uses in industries area: automotive, transportation, mining, electronics, aerospace, welding, nuclear, textiles, food services, construction, petrochemical, farming, medical, shipbuilding, fabricating, defense, foundries and plastics.