Equipped with a sharp, fast and durable P-graded ceramic abrasive grain, the Blaze® R920 medium grit arbor unmounted flap wheel features an advanced grinding aid lubricant that helps minimize heat and deliver cool, burn-free finishes. The perfect choice for challenging metals, including stainless steel, cobalt, inconel, titanium and other super alloys, the wheel includes flaps made from a blend of cotton and polyester. These materials ensure excellent conformability and strength, providing consistent results on cleaning and blending jobs, as well as great longevity.