Malco® DK6S Duct Knife With Puncture-Resistant Nylon Sheath, Serrated Double Edge Blade, Steel Blade, 6 in L Blade
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.
Malco® Duct Knife, Serrated Double Edge Blade, Steel Blade, 6 in Blade Length, Ergonomic Cushion Grip Handle