Safer to use with comfortable molded handles. Male and female shiplap knives for 1 in (25.4 mm) and 1-1/2 in (38.1 mm) duct board can be used on closed duct sections. Duct knife features a rounded scoring edge to cut fiberglass without tearing skin. Plus, Malco's No. FG1 Hole Cutter and a special 1-1/2 in (38.1 mm) blade No. KBHC are available separately for creating flex duct take-offs.

Malco® FasGroov Ductboard Knife, Black

• Duct knife features a rounded scoring edge to cut fiberglass without tearing skin