Malco DK6S Double Edge Duct Knife
Duct Knife, Serrated, Cutting Length 6 In, Overall Length 10 In, Stainless Steel blade, Molded Cushioned Grip, Handle Type Molded Rubberized Cushioned Grip, Handle Color Black, Double-Edge Serrated Blade Pierces Outer Skin, Insulation And Liner Of Flexible Round Fiberglass Wool Duct, Cuts In Either Direction