Duct Insulation Knife (brands may vary)

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Superior to many imitations!

• Stainless steel blade -- 0.12" (3.0 mm) thick -- is serrated on one edge and smooth on the other.
• Heavier and thicker blade than other knives .
• Knife cuts duct board, flex-duct, and insulation.
• Solid, brass-riveted rosewood handle, with thumb guard.
• Comes with slim, reinforced, Ripstop nylon sheath designed to hang from your belt.