Ideal blade for medium to heavy-duty projects Circular rotary replacement blade for the 60mm rotary cutters used for quilting, sewing, and general crafts. Cuts up to 6 layers of fabric. This blade is made of high quality tungsten carbide tool steel for unparalleled sharpness and superior edge retention. For Original 60mm Rotary Cutter (RTY-3/G), Deluxe 60mm Rotary Cutter (RTY-3/DX) and Quick-Change 60mm Rotary Cutter (RTY-3/NS). 1 blade per pack.