Premium Zirconium Quick Change Mini Flexi Discs - Flexible, Small Diameter Flap Disc. Ideal disc for blending and grinding/finishing on ferrous materials where accessibility is a problem and the work area curved or profiled. Mini Disc Offers: Improves access to awkward areas. Minimised area of repair/work to reduce time. Flexibility for blending and finishing on curved surfaces, profiles and contours. Quickchange locking system for convenient, quick change over of discs.