These Faithfull Heavy-Duty Hooked Trimming Knife Blades are made from quality carbon steel and are suitable for trade use. Ideal for anyone that regularly cuts sheet material. The blades feature a reversible sharpened double hook with a point for penetrating and cutting sheet material. These blades are particularly suited for cutting flexible sheet materials such as floor coverings including, carpet, linoleum and vinyl and are widely used in the packaging industry for use on plastic sheeting and in the roofing trade for cutting and trimming felt. Made in Sheffield, UK. Specification: Size: 19 x 60mm. Thickness: 0.63mm. Pack: Plastic Dispenser of 10.