Crimped wire cup brushes, labeled LASER, are produced from circular steel, stainless and brass wire with high endurance. The washer attached during the screw from turning independently from brush in time. Crimped wire cup brushes are generally used by being attached to electrical, pneumatic spiral grinding machines used with hand or specially desined equipments in works such as prepaing the plane before painting in large metal surface, deburring the welds, removing mild rust and surface polishing.