Prefering big hook blades over other blades, roofers prefer Zeluga Deep Cut blades too. Capable of cutting and trimming roofing materials, cartons, linoleum, fabric and sheet metal, Zeluga has set a new benchmark in hook blade technology excellence that remains unmatched in the industry. Professional grade SK5 steel has been used in their manufacture which has helped increase the toughness of the blades also providing superior edge holding ability. The blade is so shaped, it helps prevent damages to surfaces below. Made in the USA, the hook blades are manufactured with 1095 carbon steel. A single pack contains 100 blades (20 wraps of 5 blades each).