Extrema Ratio Glauca J1 NS Desert Aluminum, Black MIL-C N690 (04.1000.0165/RVHCS/NS)
- Glauca J1 NS Desert Aluminum, Black MIL-C, the result of Extrema Ratio's collaboration with GIGN, the special operations unit of the French National Gendarmerie. A medium-heavy blade knife for aggressive use. Easy-to-sharpen tanto blade.
£385.55This 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.
Glauca J1 NS Desert Aluminum, Black MIL-C, the result of a collaboration between Extrema Ratio, maker of the finest combat knives (combat knives) and folding tactical knives (tactical folding knives), and GIGN, the special operations unit of the French National Gendarmerie. A medium-heavy rugged, versatile folder with a blade tip designed for aggressive use to allow maximum penetration. The easy-to-sharpen tanto profile maintains a high sharpness of the cutting edge and penetration ability, regardless of the intensity of wear.
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 - solid with a double-edged modified Tanto shape, provides above-average cutting and penetrating properties. The blade is coated with black, chemically polished, non-reflective MIL-C-13924 BURNISHING coating. Combo partially serrated blade is derived with a Full Flat grind which provides strength, excellent cutting edge geometry and extreme cutting performance on textiles, hard plastics, fibrous materials. Double Blade locking system: solid Liner-Lock mechanism supported by an additional lock. The steel double-sided hilt when the blade is folded, acting like a Flipper or like an Emerson hook, is complemented by a Thumb Stud, creating a triple quick-open system for the knife.
Handle - full-length with a length of 5”, similar to assault knives. Anodized aluminum grip grips are finished with a non-slip texture for a secure grip. The so-called open-backed design simplifies cleaning and maintenance. A three-position clip allows you to carry the knife in tip-up / tip-down position with the tip down or up. The folder's head is finished with a peg for beating glass, on the back of the Pommel there is a system for safe cutting of belts or disposable handcuffs.
Additional accessories from Extrema Ratio allow you to customize the knife's handling to suit your needs.
Glauca B1 Sheath - an optional ABS hard plasticsheath with adjustable Velcro-fastened polyester straps, mounted on a Cordura base. The holster allows you to carry an open-blade folder like a knife with a fixed blade. It allows the knife to be carried upright on a belt or on a vest and Velcro fastened Velcro straps, allow the case to be attached to the thigh.
Technical data:
Product number: 04.1000.0165/RVHCS/NS
Name: Glauca J1 NS Desert Aluminum, Black MIL-C
Overall length: 268.0 mm / 10.55”
Blade length: 110.0 mm / 4.33”
Blade thickness: 4.0 mm / 0.16”
Handle length: n.d.
Handle thickness: n.d.
Weight: 198.0 g / 6.98 oz
Blade material: Böhler N690
Blade hardness: 58 HRC
Blade grind: Flat
Blade finish: MIL-C-13924 Burnishing Black
Handle material: Anticorodal Anodized Aluminum
Handle finish color: Desert
Backspacer material: Stainless Steel (spacer sleeves)
Backspacer color: Black
Clip: Right / left tip-up, left tip-down
Clip material: Stainless Steel
Pivot mechanism: Washers
Locking mechanism: Liner Lock
Opening method: Manual, dual thumb stud, flipper, rapid hook
Additional accessories: None
Designer: Extrema Ratio / GIGN
Brand: Extrema Ratio
Manufacturer: Extrema Ratio, Italy
Country of origin: Italy
Developed by: the Sharg® company