Extrema Ratio RAO II Black Aluminum Folding Knife, Black MIL-C N690 (04.1000.0136/BLK)
- RAO II Black new version of RAO knife for the "185° Rgt. Ricognizione e Acquisizione Obiettivi." It features a new blade and a rounded handle for users who prefer a reverse grip. Bolt Lock and screw-in pin effectively turn folder into a fixed-blade knife.
RAO II Black Aluminum, Black MIL-C, an upgraded version of the legendary RAO knife, developed for the Paratrooper Reconnaissance Regiment "185° Rgt. Ricognizione e Acquisizione Obiettivi” (185° RAO). It features a new blade design and an improved handle with rounded upper corners, providing a more ergonomic grip, especially for users who prefer a inverted hold.
RAO II is a robust and versatile knife with a heavy-duty folding blade designed for battlefield use and extreme tasks. Its reliable Bolt Lock blade locking system, supported by an additional bolt-on (right side) steel safety pin (Extra Safety Lock), effectively turns the folder into a fixed blade knife.
N690 - corrosion-resistant, high-carbon 1.07% (C), martensitic chromium steel 17.30% (Cr) with molybdenum 1.10% (Mo), vanadium 0.10% (V) and cobalt 1.50% (Co) for structural uniformity. Features exceptionally high corrosion resistance and long edge retention. One of the best tool steels in the world today. It achieves a hardness of 57-60 HRC. Manufactured by Böhler Edelstahl in Kapfenberg, Austria.
Blade - extremely sharp and hefty, 6 mm thick, with a false edge and a Drop Point shape featuring a pronounced belly, ensuring excellent cutting edge geometry with low friction. The blade is coated with a non-reflective matte MIL-C-13924 BURNISHING finish. The smooth Plain edge is crafted with a flat grind. A long jimped thumb ramp (spine jimping) on the spine enhances control and ease of use.
The double blade locking system includes a robust Bolt-Lock mechanism and an additional safety feature, a threaded steel pin that must be inserted and screwed through two holes in the handle. Opening and closing the blade should be performed with both hands to minimize the risk of injury, as the blade, due to its weight, acts like a true guillotine. The blade’s shifted center of gravity also allows for opening the knife with a strong wrist flick.
Handle - full-sized, as in ER combat knives. The anodized aluminum scales ensure a secure grip, even with wet hands or when wearing gloves. The handle features full stainless steel liners. At the rear, there is a lanyard hole with an attached flexible cord with a steel pin attached. Additional spine jimping on the handle’s back provides extra grip for users who prefer a reverse hold. Steel head can perform the function of glass breaker and more...
Sheath - multifunctional, made from abrasion-resistant, waterproof black nylon. It features a DuraFlex buckle closure. The sheath allows for carrying the folded folder or with the blade open, as a fixed-blade knife, on a belt or gear/vest using M.O.L.L.E. system straps. It also includes an additional pocket for carrying a diamond sharpener.
Technical specification:
Product number: 04.1000.0136/BLK
Name: RAO II Black Aluminum, Black MIL-C
Overall length: 263.0 mm / 10.40"
Blade length: 119.0 mm / 4.70"
Blade thickness: 6.0 mm / 0.24"
Handle length: n.d.
Handle thickness: n.d.
Weight: 322.0 g / 11.40 oz
Blade material: Böhler N690
Blade hardness: 58 HRC
Blade grind: Flat
Blade finish: Black MIL-C-13924 BURNISHING
Handle material: Anticorodal Anodizes Aluminum
Handle color/finish color: Black
Backspacer material: Stainless Steel
Backspacer color: Black
Clip: None
Clip material: None
Pivot mechanism: Washers
Locking mechanism: Bolt Lock & Extra Safety Lock (bolt-on steel pin)
Opening method: Manual, flipper
Sheath (holster): Nylon
Additional accessories: Diamond sharpener
Designer: Extrema Ratio
Brand name: Extrema Ratio
Manufacturer: Extrema Ratio, Italy
Country of origin: Italy
Developed by: the Sharg® company
Przeczytaj!
This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.