With this PREMIUM Tyrolit Fast Change (TFC) disc you are guaranteed to make the right choice for machining diverse materials such as Plastic, wood or aluminium. In addition to improved edge stability, a special foil backing also ensures the highest stock removal rate. Thanks to a Velcro fastening on the back, you can mount this disc quickly and easily on your dual action sander. The Velcro disc comes standard with 8, 15 or 17 holes and is available in grit sizes up to 400 for a perfect surface finish.