The CobraTec CTK-1 Large delivers reliable out-the-front action in a tactical package built for demanding applications. This double-action automatic knife combines D2 tool steel performance with aircraft-grade aluminum construction for professionals who need instant blade deployment.
What Makes This Different
The CTK-1's dual-action mechanism fires the blade forward and retracts it with equal force, eliminating the weak spring retraction common in budget OTF knives. D2 tool steel holds a razor edge significantly longer than standard stainless steel, while the stonewashed finish resists corrosion and hides wear marks. The integrated glass breaker transforms this from a cutting tool into a genuine emergency implement.
Key Features
- 3.75-inch tanto blade in D2 tool steel for superior edge retention
- Double-action firing mechanism with strong forward and retract springs
- 6061-T6 aluminum handle with stonewashed finish resists corrosion
- Integrated tungsten carbide glass breaker for emergency situations
- Reversible pocket clip accommodates left or right-hand carry
- Safety lock prevents accidental deployment during transport
- Overall length of 8.75 inches with 5-inch closed length
Field testing shows the CTK-1 maintains consistent firing across temperature ranges from -10°F to 120°F. The tanto point excels at piercing tasks while the flat grind provides clean slicing performance through rope, webbing, and packaging materials. Law enforcement and emergency responders appreciate the one-handed operation and positive lock-up under lateral pressure.
Technical Specs
- Blade Length: 3.75 inches
- Blade Steel: D2 tool steel, HRC 58-60
- Handle Material: 6061-T6 aluminum with stonewashed finish
- Overall Length: 8.75 inches
- Closed Length: 5 inches
- Weight: 4.2 ounces
- Blade Thickness: 0.125 inches
- Country of Origin: China
The CTK-1 represents serious OTF engineering at an accessible price point. CobraTec's reputation for consistent quality control means each knife ships ready for immediate service without the break-in period required by lesser manufacturers.