For general cutting of all non-ferrous metals (aluminum, brass, etc.). Mild cutting action. Use with Spiral Buff or Ventilated Flap Buffs. Use with our Spiral Sewn Buff 4in. (13035), 6in. (13034), 8in. (13033), 10in. with 1/2in. mounting hole (13037), or 10in. with 3/4in. mounting hole (13038).