The most heavy duty of coated abrasive discs, full resin bond on vulcanized (cotton fibers treated under intense pressure and heat) fiber backing. Designed for applications ranging from heavy stock removal to surface blending. Used with back up pads on portable angle grinders. Improve results on your projects involving aluminum and other soft metals with this F220 coarse grit fiber disc. The premium aluminum oxide abrasive features a paraffin wax coating and delivers a fast cut rate to speed up your workload. The disc gets its strength and tear-resistance from the heavy fiber backing and it has a full-resin bond for additional strength and durability. Opt for this disc when you need an economical choice for your coarse grit projects.