Extrema Ratio Ontos Fixed Blade Knife Review

Let’s Dive into Extrema Ratio Ontos Fixed Blade Knife

The Extrema Ratio Ontos Fixed Blade Knife, crafted by Extrema Ratio, is designed to be a rugged field knife, blending a compact size with substantial strength. This Italian-made knife aims to be a complete survival tool, going beyond basic cutting tasks with its integrated survival kit. What immediately grabs your attention is its serious aesthetic and the promise of unwavering reliability in challenging environments.

I was searching for a knife that could serve as a primary survival tool, one that I could rely on in the backcountry for various tasks. A tool that was more than just a blade, but a comprehensive resource for unexpected situations. I needed something compact, durable, and genuinely capable in real-world scenarios.

My initial impression upon unboxing the Extrema Ratio Ontos Fixed Blade Knife was of a tool built for business. The weight feels substantial, lending a sense of confidence in its durability, and the black finish on the N690 steel gives it a tactical, no-nonsense appearance. The Forprene handle felt secure and comfortable in hand, even with wet gloves.

Compared to other survival knives I’ve used, such as the SOG Seal Pup Elite and the Benchmade Bushcrafter 162, the Extrema Ratio Ontos Fixed Blade Knife stands out because of its integrated survival kit and overall design. While the SOG is lighter and more maneuverable, and the Benchmade excels in pure bushcrafting tasks, the Ontos is designed for a wider variety of situations. It’s a complete package and attempts to bridge the gap between pure cutting tools and survival implements. Ultimately, the comprehensive design swayed my decision.

Excitement and a little apprehension were my initial emotions. I was eager to test its limits in the field but also aware that a knife at this price point should deliver exceptional performance. The survival kit intrigued me, and I was particularly curious to see how it would hold up under rigorous use.

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Real-World Testing: Putting Extrema Ratio Ontos Fixed Blade Knife to the Test

First Use Experience

I took the Extrema Ratio Ontos Fixed Blade Knife on a week-long backpacking trip in the Appalachian Mountains to truly assess its capabilities. The terrain was varied, ranging from dense forests to rocky ridges, providing a range of testing conditions. I used it for everything from preparing food and building a makeshift shelter to splitting firewood and practicing basic survival skills.

The knife performed well in dry conditions, providing a solid grip and consistent cutting performance. However, the true test came during a heavy rainstorm. The Forprene handle maintained its grip even when thoroughly wet, and the N690 steel showed no signs of corrosion.

Initially, I needed some time to familiarize myself with the sheath and the MOLLE attachment system. Once I got the hang of it, deploying and re-sheathing the knife became smooth and efficient. One minor issue was the placement of the survival kit pouch – it sometimes interfered with comfortable hip movement while hiking.

After the first use, I was impressed by the blade’s sharpness retention and the overall robustness of the knife. The sawback section, while functional, proved to be somewhat less effective than a dedicated saw. The biggest surprise was how well the survival kit components were organized and accessible within the relatively compact pouch.

Extended Use & Reliability

After several months of regular use, the Extrema Ratio Ontos Fixed Blade Knife has proven to be a reliable companion. The blade remains sharp after consistent use, requiring only occasional stropping to maintain its edge. The black finish has held up well, showing only minor scratches from heavy use.

The Forprene handle still feels secure and comfortable, and the sheath continues to function flawlessly. There are no signs of loosening or wear on the handle or blade. The survival kit components remain in good condition, though I did replace some of the used items, such as the matches and water purification tablets.

Maintaining the Extrema Ratio Ontos Fixed Blade Knife is relatively straightforward. After each use, I clean the blade with a damp cloth and apply a thin coat of oil to prevent corrosion. The Forprene handle requires minimal care, and the sheath can be easily cleaned with soap and water.

Compared to my experiences with other survival knives, the Extrema Ratio Ontos Fixed Blade Knife outperforms most in terms of overall durability and the inclusion of a comprehensive survival kit. While some specialized knives may excel in specific tasks, the Ontos is a well-rounded tool that provides confidence in a variety of situations. It has not disappointed me.

Breaking Down the Features of Extrema Ratio Ontos Fixed Blade Knife

Specifications

• Overall Length: 12 inches. This provides sufficient reach for various tasks while remaining manageable for carrying.
• Blade Length: 6.5 inches. A good balance between cutting power and maneuverability.
• Blade Material: N690 stainless cobalt steel. Known for its excellent edge retention, corrosion resistance, and toughness.
• Blade Finish: Black. Offers a non-reflective surface and added corrosion protection.
• Handle Material: Forprene. Provides a secure and comfortable grip, even in wet conditions.
• Handle Color: Black. A practical and tactical color choice.
• Sheath Material: Nylon. Durable and MOLLE compatible for versatile carry options.
• Includes a survival kit containing: Water bag, Nylon cord, Button compass, Candle, Flint & Striker, Fishing kit, Mini multi-tool, Matches, Sewing kit, Water purification tablets, Single edge razor, Mayday mirror, Whistle, Snare wire, Wire saw, Pencil, and Survival instructions. This comprehensive kit increases the knife’s utility in survival scenarios.
• Additional inclusions: A fluorescent stick (lasting 12 hours) and a diamond sharpener. These are valuable additions for signaling and maintaining the blade’s edge.

These specifications are significant because they combine to create a reliable and versatile survival tool. The high-quality materials, thoughtful design, and comprehensive survival kit provide a sense of security in demanding environments.

Performance & Functionality

The Extrema Ratio Ontos Fixed Blade Knife excels as a cutting tool, easily handling tasks such as slicing, chopping, and carving. The blade’s geometry and sharpness allow for efficient wood processing and food preparation. The sawback, while not as effective as a dedicated saw, can handle small branches and fibrous materials.

One strength is its robust construction, inspiring confidence when tackling demanding tasks. A minor weakness is that the survival kit pouch can be bulky, depending on how it’s attached to the sheath. Overall, the knife meets and, in some aspects, exceeds expectations, particularly given its comprehensive design.

Design & Ergonomics

The Extrema Ratio Ontos Fixed Blade Knife boasts excellent build quality. The materials used feel durable and high-quality. The weight feels substantial but well-balanced.

The Forprene handle provides a secure and comfortable grip. The knife is user-friendly, and though familiarizing myself with the sheath’s MOLLE attachment system requires some practice, it’s easy to get comfortable with the knife itself.

Durability & Maintenance

The Extrema Ratio Ontos Fixed Blade Knife is built to last. The N690 steel is known for its durability, and the Forprene handle is resistant to wear and tear. With proper care and maintenance, this knife should provide years of reliable service.

Maintenance is straightforward. Cleaning the blade after each use and applying a thin coat of oil is generally all that’s necessary to prevent corrosion and maintain its performance.

Accessories and Customization Options

The most significant accessory included with the Extrema Ratio Ontos Fixed Blade Knife is its survival kit. This includes essential items for fire starting, water purification, navigation, and basic repairs. While there aren’t many direct customization options for the knife itself, the MOLLE compatible sheath allows for the attachment of other pouches or accessories.

I could, for example, add a larger fire starter or a dedicated multi-tool pouch to complement the existing kit. The Extrema Ratio Ontos Fixed Blade Knife is compatible with any standard MOLLE attachments, providing flexibility in customizing the carry system to individual preferences.

Pros and Cons of Extrema Ratio Ontos Fixed Blade Knife

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Who Should Buy Extrema Ratio Ontos Fixed Blade Knife?

The Extrema Ratio Ontos Fixed Blade Knife is perfect for survivalists, serious backpackers, and anyone who spends time in remote areas where self-reliance is essential. It’s also suitable for military personnel or law enforcement officers who require a durable and versatile tool with a comprehensive survival kit. Anyone who prioritizes reliability, durability, and self-sufficiency in challenging environments will appreciate the Extrema Ratio Ontos Fixed Blade Knife.

Those on a tight budget or who only require a basic cutting tool should skip this product. It’s an investment that’s only justified if the user values the included survival kit and the knife’s overall durability.

Must-have accessories or modifications include a high-quality fire starter (to supplement the included flint and striker), a dedicated multi-tool (for more complex tasks than the included mini-tool can handle), and potentially a larger water container (if relying on the included water bag). Consider adding a small flashlight as well.

Conclusion on Extrema Ratio Ontos Fixed Blade Knife

The Extrema Ratio Ontos Fixed Blade Knife is a well-designed and robust survival tool. Its N690 steel blade, comfortable Forprene handle, and comprehensive survival kit make it a reliable companion in demanding environments. While the price is a significant consideration, the overall quality and versatility of the Extrema Ratio Ontos Fixed Blade Knife justify the investment for those who require a top-tier survival knife.

The value proposition lies in its combination of a high-performance blade and a thoughtfully curated survival kit. It reduces the need to carry multiple separate items. I personally recommend the Extrema Ratio Ontos Fixed Blade Knife to anyone who takes their outdoor adventures seriously.

If you’re looking for a durable, versatile, and reliable survival knife that can handle almost any situation, the Extrema Ratio Ontos Fixed Blade Knife is an excellent choice. Invest in your safety and preparedness – you won’t regret it.