These blades are made with Carbon Steel, sharp enough to cut through heavy materials, such as leather. While they make the perfect pair with the 45mm Midnight Edition Rotary Cutter, these blades are designed with a universal opening and will fit on other rotary cutters with the same design, such as Olfa and Kai.
![[NOT_RC45B] 45mm Rotary Cutter, Midnight Edition](/web/image/product.product/9090/image_128/%5BNOT_RC45B%5D%2045mm%20Rotary%20Cutter%2C%20Midnight%20Edition?unique=a82db31)