Stanely Titan Fixed Blade Roofing Knife & Large Hook Blade. A super heavy duty 10-550M knife Double notch blade location for added safety Easy blade change using solid brass serrated wheel Complete with 3 heavy duty blades Primarily used by carpet fitters and tradesmen. Stanley 11-983 Large Hook Blades from 1996 are ideal for cutting thick materials such as roofing, carpet and linoleum Edge protection blade for cutting and trimming roofing materials, linoleum, carpet, fabrics, cardboard and sheet materials Blade shape helps prevent damage to materials beneath the cutting surface Includes 100 blades without dispenser.