Spyderco Endura 4 VG-10 Steel Folding Knife 3.75" Serrated Blade

The Spyderco Endura 4 delivers reliable cutting performance with its premium VG-10 stainless steel blade and ergonomic design. This folding knife combines Japanese steel craftsmanship with Spyderco's signature engineering for everyday carry and tactical applications.

What Makes This Different

The VG-10 stainless steel blade maintains its edge significantly longer than standard 420HC or 8Cr13MoV steel found in comparable knives. The full-flat grind geometry reduces cutting resistance while the SpyderEdge serrations slice through fibrous materials like rope and webbing with minimal effort. The textured FRN handle provides secure grip in wet conditions while weighing just 3.2 ounces.

Key Features

• VG-10 stainless steel blade with 58-61 HRC hardness for superior edge retention
• SpyderEdge serrated cutting edge optimized for rope, cord, and fibrous materials
• Textured fiberglass-reinforced nylon handle resists impact and chemicals
• Four-position pocket clip allows tip-up or tip-down carry on either side
• David Boye dent lock mechanism prevents accidental closure during use
• 13mm round hole for one-handed opening with gloves
• Full-flat grind blade geometry reduces drag through materials

Field testing demonstrates consistent performance across temperature ranges from -20°F to 140°F without lock failure or handle degradation. The serrated edge maintains cutting efficiency through extended use on synthetic materials, paracord, and cardboard. Law enforcement and emergency responders rely on the Endura 4 for seatbelt cutting and rescue operations where blade retention under stress is critical.

Technical Specs

• Overall length: 8.75 inches (22.2cm)
• Blade length: 3.75 inches (9.5cm)
• Closed length: 5 inches (12.7cm)
• Blade thickness: 0.118 inches (3mm)
• Weight: 3.2 ounces (91g)
• Steel: VG-10 stainless with full-flat grind
• Handle: Black textured FRN (fiberglass-reinforced nylon)
• Lock: David Boye dent lock
• Made in Seki City, Japan

The Endura 4 represents proven knife engineering with materials selected for long-term reliability rather than cost reduction. Professional users choose this model when consistent performance matters more than initial price point.