SOG One-Zero Auto 3.1" CPM S35VN Folding Knife - Black Handle

The SOG One-Zero Auto delivers premium blade steel performance in a compact automatic folder designed for demanding tactical and everyday carry applications. This knife combines CPM S35VN stainless steel with precision engineering to create a reliable cutting tool that maintains its edge through extended use.

What Makes This Different

The One-Zero Auto features CPM S35VN steel, a powder metallurgy stainless steel that offers superior edge retention compared to standard 440C or AUS-8 steels commonly found in production knives. The black chrome finish provides corrosion resistance while reducing glare, and the automatic opening mechanism delivers consistent deployment speed. The 3.1-inch blade length maximizes cutting capability while remaining compliant with most local carry laws.

Key Features

• CPM S35VN stainless steel blade with 58-60 HRC hardness rating
• Automatic opening mechanism with spring-loaded deployment
• Black aluminum handle scales with textured grip surfaces
• 3.1-inch plain edge blade with black chrome coating
• Folding design with secure locking mechanism
• Pocket clip for right-hand tip-up carry
• Overall length of approximately 7.2 inches when open

Field testing demonstrates reliable performance across temperature ranges from -20°F to 120°F, with the automatic mechanism maintaining consistent function. The CPM S35VN steel composition provides excellent edge retention for cutting tasks including rope, cardboard, and synthetic materials. The black aluminum handle offers a secure grip in wet conditions while keeping overall weight under 4 ounces.

Technical Specs

• Blade Length: 3.1 inches
• Overall Length: 7.2 inches (open), 4.1 inches (closed)
• Blade Steel: CPM S35VN stainless steel
• Handle Material: Black aluminum with grip texturing
• Opening Mechanism: Automatic spring deployment
• Blade Finish: Black chrome coating
• Weight: Approximately 3.8 ounces
• Manufactured by SOG Specialty Knives & Tools

The One-Zero Auto represents SOG's commitment to producing reliable automatic knives with premium materials and proven mechanisms. The combination of CPM S35VN steel and automatic deployment creates a tool that performs consistently when quick blade access is required.