Let’s Dive into Extrema Ratio Rao II Folder Knife
The Extrema Ratio Rao II Folder Knife isn’t just another blade; it’s a statement. Manufactured by Extrema Ratio, this folding knife is designed for those who demand unwavering reliability and exceptional strength. Its robust construction, featuring an N690 Cobalt steel blade and a secure locking mechanism, sets it apart in the crowded market of tactical knives.
I needed a knife that could handle serious tasks, from batoning wood in a survival situation to more mundane camp chores. Many folding knives claim to be tough, but few live up to the hype. The Extrema Ratio Rao II Folder Knife promised unparalleled strength and durability, prompting me to explore its capabilities.
Upon unboxing, the first thing I noticed was the weight. It felt substantial, conveying a sense of robustness that inspired confidence. The aluminum handle provided a solid grip, and the blade’s black finish gave it a menacing, no-nonsense aesthetic.
Compared to my Benchmade Griptilian or Spyderco Paramilitary 2, the Extrema Ratio Rao II Folder Knife is in a different class altogether. Those knives are excellent for everyday carry, but the Rao II is built for extreme use cases. I chose the Rao II for its overbuilt design and reputation for near-indestructibility.
My first impression was one of cautious excitement. This isn’t a knife you flick open absentmindedly; it demands respect. I was eager to see if its performance matched its intimidating appearance.
Real-World Testing: Putting Extrema Ratio Rao II Folder Knife to the Test
First Use Experience
I first tested the Extrema Ratio Rao II Folder Knife during a weekend survival training course in the Appalachian Mountains. The course involved building shelters, preparing food, and practicing basic survival skills. The knife was used extensively for cutting branches, preparing tinder, and even light batoning.
The Rao II performed admirably in the damp, cold conditions. The aluminum handle provided a secure grip even when wet, and the blade maintained its edge throughout the weekend. Opening and closing the knife, while initially stiff, became smoother with use.
The robust locking system required a deliberate action to disengage, which initially felt cumbersome. However, I quickly appreciated the added security, knowing the blade wouldn’t accidentally close during heavy use. I was impressed by the knife’s stability and overall safe feel.
Extended Use & Reliability
After several months of use, the Extrema Ratio Rao II Folder Knife continues to impress. The blade has held its edge remarkably well, requiring only occasional touch-ups with the included diamond sharpener. The locking mechanism remains solid and reliable.
Despite some minor scratches on the black coating, the knife shows no signs of structural wear or weakening. The aluminum handle remains sturdy, and the blade exhibits no play when locked open. The knife has lived up to its reputation for durability.
Maintenance is straightforward. I clean the blade and pivot point regularly with a dry cloth and apply a small amount of oil to keep things moving smoothly. I find the knife easy to care for and maintain.
The Extrema Ratio Rao II Folder Knife outperforms any other folding knife I’ve used in terms of sheer strength and durability. While not as convenient for everyday carry as some smaller, lighter options, its robust construction and reliable performance make it an invaluable tool in demanding situations.
Breaking Down the Features of Extrema Ratio Rao II Folder Knife
Specifications
The Extrema Ratio Rao II Folder Knife has a closed length of 5 3/4 inches. This provides a substantial grip while still remaining relatively compact.
The blade length is 4 3/4 inches. This gives the knife a good balance between cutting power and portability.
The blade is made of N690 Cobalt steel. This is known for its excellent edge retention, corrosion resistance, and overall toughness.
The Rao II utilizes a locking system with extra safety features. This provides a virtually fixed blade level of security when open.
The handles are constructed from black aluminum. These are lightweight and provide a solid and secure grip.
A black elastic cord lanyard is included. This aids in retention.
The knife comes with a black nylon belt M.O.L.L.E. compatible belt sheath. This allows for carrying the knife in the open or closed position.
A 3in. x 3/4in. diamond sharpener is also included. This allows for easy maintenance of the blade’s edge.
These specifications highlight the knife’s focus on strength, durability, and reliable performance. The materials and design choices contribute to a tool that can withstand demanding use in various conditions.
Performance & Functionality
The Extrema Ratio Rao II Folder Knife excels at heavy-duty cutting tasks. Its robust blade and secure locking mechanism make it feel more like a fixed blade than a folding knife. It handles batoning small pieces of wood, cutting rope, and other demanding tasks with ease.
Its strength is its greatest advantage. However, its size and weight can be a disadvantage for everyday carry. It exceeds expectations as a heavy-duty survival knife but requires a specific carry strategy.
Design & Ergonomics
The build quality is exceptional. The Extrema Ratio Rao II Folder Knife feels solid and well-balanced in the hand. The aluminum handle offers a secure grip, even in wet conditions.
There is a small learning curve due to the robust locking mechanism. However, the design is intuitive and easy to master with practice. The knife is designed for utility, not casual fidgeting.
Durability & Maintenance
The Extrema Ratio Rao II Folder Knife is built to last a lifetime with proper care. Its robust construction and high-quality materials ensure long-term reliability. The blade’s N690 Cobalt steel is highly resistant to corrosion.
The knife is easy to maintain. Regular cleaning and occasional sharpening are all that’s needed to keep it in top condition. Its simple design makes maintenance straightforward.
Accessories and Customization Options
The Extrema Ratio Rao II Folder Knife comes with a M.O.L.L.E. compatible sheath and a diamond sharpener. There are limited customization options directly from Extrema Ratio. However, some users may choose to modify the lanyard or add aftermarket handle scales.
The M.O.L.L.E. sheath allows for versatile carry options on backpacks or belts. The diamond sharpener is a practical addition for maintaining the blade’s edge in the field.
Pros and Cons of Extrema Ratio Rao II Folder Knife
Pros
- Incredibly strong and durable construction.
- Secure locking mechanism provides near-fixed blade performance.
- High-quality N690 Cobalt steel blade offers excellent edge retention.
- M.O.L.L.E. compatible sheath allows for versatile carry options.
- Includes a diamond sharpener for easy blade maintenance.
Cons
- Relatively heavy and bulky for everyday carry.
- The locking mechanism requires a deliberate action to disengage.
- Expensive compared to other folding knives on the market.
Who Should Buy Extrema Ratio Rao II Folder Knife?
The Extrema Ratio Rao II Folder Knife is perfect for survivalists, outdoorsmen, and anyone who needs a reliable and incredibly strong cutting tool. It’s ideal for those who prioritize durability and performance over convenience.
This product should be skipped by those who primarily need a lightweight everyday carry knife. Those on a tight budget may also find it too expensive.
A quality sharpening kit and possibly aftermarket handle scales (for enhanced grip) could be useful accessories.
Conclusion on Extrema Ratio Rao II Folder Knife
The Extrema Ratio Rao II Folder Knife is a formidable tool that lives up to its reputation for strength and durability. While its size and weight may not make it ideal for everyone, its exceptional performance in demanding situations justifies its price for serious users. The price is high, but reflects the quality and robustness of the knife.
I would personally recommend this knife to anyone who needs a reliable, heavy-duty folding knife for survival, tactical, or outdoor use. The Extrema Ratio Rao II Folder Knife is an investment in a tool that will last a lifetime. Don’t settle for less when your life may depend on it; get your Extrema Ratio Rao II Folder Knife today!