Extrema Ratio RAO, Black Folder (04.1000.0141/BLK)

RAO Black, in June 2006 the parachute reconnaissance regiment "185° Rgt. Ricognizione e Acquisizione Obiettivi" (185° RAO) entrusted Extrema Ratio with the development of a unique knife adapted to the specific operations of the unit. The project resulted in the RAO, a robust heavy folding knife (Heaviest Folder) with a massive, reliable blade.

The legendary RAO is a robust, versatile knife with a massive folding head designed for use on the battlefield and for extremely heavy work. The reliable Bolt Lock system, supported by an additional bolt-on (right side) steel safety pin (Extra Safety Lock), effectively turns the folder into a knife with a fixed blade.

Blade - massive 6 mm thick and extremely sharp with a short false blade and Tanto shape provides excellent cutting edge geometry with low friction. Made of good sharpness retaining, durable, high cobalt N690 stainless steel with hardness of 58 HRC made in Austrian smelter Böhler-Uddeholm. The blade is coated with a non-reflective matte MIL-C-13924 BURNISHING coating. The smooth Plain blade has a Flat grind. On the back of the blade long notched thumb ramp (spine jimping) facilitates efficient operation of the knife.

Double head locking system: solid Bolt-Lock mechanism and additional protection, steel threaded bolt which must be passed and screwed through two holes in the handle. Opening and closing the blade should be done with both hands to minimize the risk of self-inflicted injuries, because the blade, due to its weight, is a real guillotine. The head with a shifted centre of gravity also allows the knife to be opened with a decisive flick of the wrist.

Handle - full size, as in combat knives. Anodised aluminium liners guarantee a secure grip with wet hands as well as in a glove. Full stainless steel liners. At the back of the handle a lanyard hole with an elastic cord pulled through it and a steel pin attached. Additional notched spine jimping on the back of the handle for users who appreciate an inverted grip. The steel head can be used as a glass breaker and more...

Scabbard - multi-functional scabbard made of abrasion-resistant, waterproof nylon in black. Fastened with a DuraFlex buckle. The holster allows you to carry a folded folder and with an open blade as a knife with a fixed blade on your belt or on your equipment / waistcoat by means of M.O.L.L.E. system tapes. Additional pocket for carrying a diamond sharpener.

Technical data:
Product number: 04.1000.0141/BLK
Name: RAO Black
Type of steel: Böhler N690
Blade hardness: 58 HRC
Blade length: 119.0 mm / 4.70"
Blade thickness: 6.0 mm / 0.24"
Overall length: 263.0 mm / 10.35"
Weight: 335.0 g / 11.80 oz
Cutting edge type: Plain
Grind Type: Flat Grind
Blade type: Tanto
Locking mechanism: Bolt Lock & Extra Safety Lock (screwed steel bolt)
Handle Material: Anticorodal Anodized Aluminium
Case: Nylon
Manufacturer: Extrema Ratio, Italy