Olfa 9458 60mm Tungsten Tool Steel Rotary Blades, Pack of 5

If you working on a more heavy-duty project, this is the blade for you. The tungsten tool steel blade, OLFA's largest rotary blade, cuts up to eight layers of fabric at a time. This blade stays sharper longer, thanks to its high-quality construction and material. Good For: cutting strips, multiple layers and finishing quilts prior to binding. Cuts fabric, paper, tarp, vinyl, upholstery, leather and other thick textiles.