DK6S, Cushioned-Gripped Duct Knife (Serrated), 6 in Length
For cutting flexible fiberglass wool duct and ductboard. Double edge blades are ideal for blind cuts in "flex" duct. Ergonomic cushion grip features one serrated cutting edge and comes with a puncture-resistant nylon sheath. Resharpenable, heavy-duty cutlery grade steel blades.