The R444 Expert for Metal produces an impressive finish on metal surfaces. It features a stable vulcanised fibre backing that enables a steady constant grinding process. Furthermore, its semi-friable aluminium oxide abrasive grit is particularly suited for work on metal applications. It is intended for deburring, welding preparation and blending on carbon steel, mild steel, aluminium, non-ferrous metals and cast iron. It is also ideal for removing discolouration, stock and surface imperfections. The R444 Expert for Metal is compatible with Angle Grinders. The grit is bonded using fully synthetic resin on vulcanised fibre backing for high work stability and optimal sanding results.