Choose OLFA's largest rotary blade for more heavy-duty projects. The tungsten tool steel blade cuts up to eight layers of fabric at a time. This blade is super sharp right out of the package and stays that way longer, thanks to its high-quality construction. Good For: cutting strips, multiple layers and finishing quilts prior to binding. Cuts fabric, paper, tarp, vinyl, upholstery, leather and other thick textiles. Made from high-quality tungsten tool steel. Fits any OLFA 60mm Rotary Cutter.