Product description X-LOCK Fibre disc, 125mm, G 80, R444, Expert for Metal Superb metal finish X-LOCK R444 Expert for Metal fibre disc gives metal surfaces an unparalleled finish Stable backing made of vulcanised fibre material ensures an even sanding process Advantages Impressive result - The X-LOCK R444 Expert for Metal fibre disc gives metal surfaces an unprecedented finish. The stable backing made of vulcanised fibre material ensures an even sanding process. The aluminium oxide abrasive grain is particularly suitable for metalworking. X-LOCK sanding discs also fit standard angle grinders. Tool-free X-LOCK system to change fibre discs quickly and easily. Discs can be locked onto X-LOCK or standard rubber backing pad. Snap it on with X-LOCK: the fastest accessory changing system on the market. Also fits nut and threaded angle grinders.