Impressive Finish - The X-LOCK R444 Expert for Metal Fibre Disc produces an impressive finish on metal surfaces. It features a stable vulcanised fibre backing that enables a consistent grinding process. Its aluminium oxide grain is particularly suited for work on metal applications. X-LOCK sanding discs also fit standard angle grinders. Changing fibre discs is fast and convenient thanks to the keyless X-LOCK system. Discs are suitable for clamping on an X-Lock or standard rubber backing pad. Click it on with X-LOCK – the fastest accessory-changing system on the market. Also fits nut and thread angle grinders. Features and Benefits • Impressive Finish on Metal • X-LOCK R444 Expert for Metal Fibre Disc produces an impressive finish on metal surfaces • Stable vulcanised fibre backing enables a consistent grinding process Specifications Disc diameter: 115mm Bore diameter: 22,23mm Bore size: 22,23mm Grit: 80