8-segment, 18mm snap-off blade for construction materials. Made of high-quality carbon tool steel with a double-honed blade for unparalleled sharpness and superior edge retention. Exact 59° edge angle optimizes cutting power and minimizes blade breakage. The blades are designed to cut through drywall, linoleum, carpet, flooring, insulation, and roofing materials. 5-pack of blades.