Double-Sided Smooth and Serrated Duct Knife

For cutting flexible fiberglass wool duct and duct board, the DK6S Duct Knife has double edge blades that are ideal for blind cuts in "flex" duct. Ergonomic cushion grip features one serrated cutting edge and comes with a puncture-resistant nylon sheath. Heavy-duty cutlery grade steel blades can be resharpened.