These Faithfull Cloth Sanding File Belts are manufactured from Aluminium Oxide resin, bonded onto a durable X-Weight cloth belt. Ideal for use on Powerfile sanders and suitable for both stock removal and finishing applications. Ideal for use on hardwoods, softwoods, ferrous metals, filler and most manmade boards such as MDF and plywood.Suitable for use with most popular powered files.