There is a wide range of selection of bristles for RSA brushes, among them special wire made of steel for steel processing, rustfree steel wire for stainless steel processing, grinding nylon for non-ferrous metals and plastic bonded special wire made of steel or rustfree steel wire for sheet metal edges. In general, one can say: The more sensitive the work piece is, the thinner the wire has to be. Single wires take off material sparingly, corded or knotted wires are less flexible and achieve a high ablation. On plastic-bonded brushes the wire tips only protrude slightly over the plastic mass, work in an exactly defined work area and are thus ideal for rounding straight sheet metal edges. Brushes with grinding nylon have the advantage that not only the tips deburr, but also the sides. crimped wires are elastic and support each other, which increases the stability during usage.
