A close-up view of the Crescent CTDKNIFE 14-inch duct knife, highlighting its professional-grade stainless steel blade with a finely serrated edge and a smooth, razor-sharp edge. The durable, ergonomic handle features red and black overmolded grips for comfort and control. The knife is presented on its retail packaging with a black heavy-duty protective sheath.
A full-length view of the Crescent CTDKNIFE professional HVAC duct knife with its red and black overmolded ergonomic handle. The knife is securely housed within its black heavy-duty injection-molded carrying sheath, designed for safety, storage, and easy access on a tool belt. The sheath features an integrated belt loop.
A detailed close-up of the professional Crescent CTDKNIFE HVAC insulation cutter's handle. The ergonomic dual-material handle features a textured red and black overmolded grip with prominent finger and hand contact points to maximize comfort, control, and user ergonomics during heavy-duty cutting. The silver butt-end is visible.
A full product kit view of the Crescent CTDKNIFE 14-inch HVAC duct knife and its accompanying heavy-duty protective sheath. The knife is shown removed from the sheath, displaying the full length of the 4.5-inch precision-ground steel blade with both its serrated and smooth cutting edges. Both components are ready for professional flex duct installation.
A close-up view of the Crescent CTDKNIFE 14-inch duct knife, highlighting its professional-grade stainless steel blade with a finely serrated edge and a smooth, razor-sharp edge. The durable, ergonomic handle features red and black overmolded grips for comfort and control. The knife is presented on its retail packaging with a black heavy-duty protective sheath.
A full-length view of the Crescent CTDKNIFE professional HVAC duct knife with its red and black overmolded ergonomic handle. The knife is securely housed within its black heavy-duty injection-molded carrying sheath, designed for safety, storage, and easy access on a tool belt. The sheath features an integrated belt loop.
A detailed close-up of the professional Crescent CTDKNIFE HVAC insulation cutter's handle. The ergonomic dual-material handle features a textured red and black overmolded grip with prominent finger and hand contact points to maximize comfort, control, and user ergonomics during heavy-duty cutting. The silver butt-end is visible.
A full product kit view of the Crescent CTDKNIFE 14-inch HVAC duct knife and its accompanying heavy-duty protective sheath. The knife is shown removed from the sheath, displaying the full length of the 4.5-inch precision-ground steel blade with both its serrated and smooth cutting edges. Both components are ready for professional flex duct installation.
Crescent

Crescent 14 Inch HVAC Duct Knife CTDKNIFE Dual Sided Serrated and Smooth Razor Edge Steel Blade Professional Flex Duct Insulation Cutter with Sheath

Only 1 left
SKU: CTDKNIFE
$18.99

Description

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The Ultimate HVAC Performance Tool: Crescent 14-Inch Dual-Edge Duct Knife

Engineered specifically for the demands of the modern HVAC technician, the Crescent CTDKNIFE 14-Inch Duct Knife delivers superior versatility on the jobsite. Featuring advanced dual-cut technology, this high-performance blade offers a razor-sharp smooth edge for clean, precise slices and a robust serrated edge for ripping through tough flexible ducting and thick insulation. The precision-ground steel blade is optimized with a specific geometry that reduces the physical effort required for each cut, allowing you to breeze through complex trunk line installations and residential rough-ins with professional accuracy.

User fatigue is a thing of the past thanks to the ergonomically designed dual-material handle. Crescent has optimized the hand and finger contact points to provide maximum fit and control, even when wearing heavy work gloves. Despite its impressive reach, the knife features a shorter overall handle length to provide a more balanced feel and tighter control over the blade's movement. For safety and convenience, every knife includes a heavy-duty injection-molded carrying sheath with a secure locking mechanism, ensuring your blade remains protected and easily accessible on your tool belt throughout the workday.

Key Features

  • Dual-Cut Technology: Features both a serrated and a smooth razor edge to handle diverse materials with a single tool.
  • Precision-Ground Steel: High-quality blade geometry provides superior cutting quality with significantly reduced manual effort.
  • Ergonomic Comfort Grip: Dual-material handle overmold maximizes hand fit and control while reducing vibration and slippage.
  • Compact Control: Optimized overall length designed to provide maximum leverage without sacrificing precision.
  • Industrial Durability: Built to withstand the harsh conditions of crawlspaces, attics, and commercial jobsites.
  • Included Safety Sheath: Heavy-duty injection-molded sheath ensures safe storage and rapid tool retrieval.
  • HVAC Professional Grade: Specifically balanced for cutting flexible ductwork, fiberglass insulation, and acoustic liners.

What's Included

  • (1) Crescent 14-in. Dual-Edge Duct Knife
  • (1) Injection-Molded Protective Sheath

Specifications

Brand Crescent
Model Number CTDKNIFE
Overall Length 14.375 in.
Blade Length 4.5 in.
Blade Material Steel
Blade Finish Satin
Handle Material Dual-Material Overmold
Edge Types Serrated & Smooth Razor
Storage Included Injection Molded Sheath
Overall Weight 1.1 lbs.
Warranty Full Lifetime
Barcode / UPC 037103346391

Pro-Tip

Master the Flex Duct Cut: When cutting flexible ducting, always use the serrated side of the Crescent Duct Knife to puncture and saw through the tough wire reinforcement. Once you’ve cleared the wire, flip to the smooth razor edge to slice through the outer foil and fiberglass insulation for a cleaner, professional finish that makes attaching collars and zip-ties significantly easier!