Malco FG1 fiberglass duct hole cutter is supplied with standard double point utility knife blade for cutting 1 inch (25.4 mm) board. (NOTE: USE SPECIAL No. KBHC BLADE FOR 1-1/2 (38.1 mm) INCH DUCTBOARD).

• Cuts 4" to 20" (102 to 508 mm) diameter holes in fiberglass ductboard.
• Operation is fast and easy.
• Cutter rotates counter clockwise on a center pivot punch.
• Durable extruded aluminum frame and engineering grade molded plastic and nylon components.
• Blade holder stores in body for safety and to protect blade from damage when not in use.