The Bosch EXPERT R444 Fibre Sanding Disc for Metal is a 115mm angle grinder disc designed for precision metal finishing, deburring, and surface preparation work. Built on a vulcanised fibre backing, the R444 delivers a steady, consistent grinding action that maintains control throughout the sanding process. The semi-friable aluminium oxide abrasive grit is bonded with fully synthetic resin, providing high work stability and reliable results across a range of metal applications. This disc is suited to deburring, welding preparation, and blending on carbon steel, mild steel, aluminium, non-ferrous metals, and cast iron. It is equally effective for removing discolouration, stock, and surface imperfections where a clean, finished result is required. Fitted with a 22.23mm bore, the disc is compatible with standard locking nut angle grinders and requires use with a suitable backing pad. With a maximum rotation speed of 13,300 RPM, it is a practical choice for fabricators, welders, and metalworkers handling demanding finishing tasks. Features and Benefits: • Semi-friable aluminium oxide abrasive grit suited to a wide range of metal applications • Vulcanised fibre backing provides stability and consistent grinding performance • Fully synthetic resin bond for high work stability and optimal sanding results • 22.23mm bore compatible with standard locking nut angle grinders • Suitable for carbon steel, mild steel, aluminium, non-ferrous metals, and cast iron • Ideal for deburring, welding preparation, blending, and removing surface imperfections Specifications: Disc diameter: 115mm Bore diameter: 22.23mm Max. rotation speed: 13,300 RPM Grit: 36 Abrasive material: Brown aluminium oxide Backing material: V8 vulcanised fibre Bonding: Full synthetic resin Compatible machines: Angle grinders Net weight: 0.024kg

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