Jon Bhandari Tools Flap Discs are made of heated Aluminium Oxide. It is completely synthetic resin bonded with sturdy cloth emery. Jon Bhandari Tools Flap Discs are generally used for grinding, stock removal, edge chamfering / beveling, blending, cleaning and finishing, providing an all in one application. High material removal rate and Long Life makes it an ideal Flap Disc. Ideal for Metalworking. Can be used on all kinds of Metal, Wood and Plastic. Ideal for Home, Workshop, Hobbyists, Tradesmen, Builders and DIY enthusiasts, etc. Best suited for all high speed Angle Grinders.