Flap disc with thick reinforced plastic backing, zirconium abrasive cloth and ceramic abrasive. Bi-laminar execution with flat backing pad. Thanks to overlapping pairs of flap discs with a large width, an increased abrasive surface area and longer disc life are guaranteed. It speeds up grinding operations by exerting low pressure on very hard materials. Ideal on stainless steels, high-alloy steels but also suitable for cast iron and titanium. Recommended for use with good power grinders to ensure proper performance.