? Non-Woven Hook & Loop Disc,Surface Conditioning Discs ? Make your cuts up to 20 percent faster, and get generally better performance, with this Bear-Tex Rapid Prep AO coarse grit non-woven hook & loop disc on your angle grinder. This sturdy disc uses a high-quality aluminum oxide abrasive to produce a coarse grain for first passes that efficiently shave away the metal you're working with. The high-loft nylon fiber material in the backing pads the disc face and extends its useful life, while Clean Bond resin technology helps ensure a smear-free finish even on alloys with a high nickel content. ? Quality aluminum oxide abrasive grain coating provides up to 20% higher cut rate and 50% better performance than competitive products ? Premium high-loft nylon fiber bonded to a strong nylon scrim backing allows a thick layer of resin bond and grain for extended life, added durability and stiffness ? Proprietary Clean Bond resin technology guarantees smear-free finishes even on high nickel content alloys and reduces loading on aluminum and other soft metals ? Coarse grit for moderate material removal and initial blending of welds; stainless steels; tool steels; soft metals like aluminum; cast, ductile, and gray iron; fiberglass, composites, carbon steels, super alloys, and titanium ? Waterproof and washable