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Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK

Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
Extrema Ratio - N.K.3 Neck Knife Black - 04.1000.0206/BLK
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Product code: 22687
Manufacturer: Extrema Ratio
  • N.K.3 BLACK based on the N.K.2 neck knife is distinguished by its longer head. Sheath adapted to hanging on the neck, optional on a vest or belt, which allows the use of a knife as a clinch pick.
187,00 EUR
/ pc
Buy and receive: 748pts
Free delivery from 74,75 EUR
Replace or return up to 30 days
N. K. 3 BLACK neck knife / clinch pick, based on the construction from N.K.2 model, stands out with its longer blade. An exquisite knife with impressive cutting efficiency, used for self-defense as well as for small work. N. K. 3 - compact knife with a fixed blade and full-tang design with a sheath adapted for hanging on the neck, optional on a waistcoat or belt.

Despite its small size, good lies in the hand, it enables effective deep cuts. The undercut on the spine ramp / spine is designed to facilitate the support of the thumb or index finger. In expert hands this knife is incredibly fast - N. K. 3 is a professional tool.

Blade - massive, 6.3 mm thickness with Tanto profile. On both sides of the blade - blood grooves. Manufactured from high-strength, rugged, high-grade N690 stainless steel with a hardness of 60 HRC, made at the Austrian Böhler steelworks. The blade is covered with a mate, non-reflective MIL-C-13924 BURNISHING coating. Smooth blade (Plain type) was made with a flat cut (Flat grind), which maintains high sharpness of the cutting edge and penetration ability regardless of the intensity of wear.

Handle - with a perfect design, made of Austrian Böhler-Uddeholm's N690Co stainless steel. The shape of the grip prevents accidental injuries during use. Enlarged  gap (lanyard hole) in the back part for pulling the leash or safety rope.

Sheath - made of Kydex material allows you to quickly get a knife in every situation. Includes a rope made of paracord to hang the sheath with a knife on the neck. The holster can also be attached in conjunction with the optional Extrema Ratio accessories: under-tapes the M.O.L.L.E system. or on a belt which allows you to use N.K. 3 K as clinch pick (short knife for final defense in clinch). Clinch Pick knife, tool ideal for self-defense also from a sitting position, for example on a bench.

Fasteners - optional Extrema Ratio accessories allows you to adjust the transfer method to your needs. BELT-CLIP (fastening the sheath to the belt), UNDER SHIRT SYSTEM (fastening for conveying).

Technical specification:
Product number: 04.1000.0206/BLK
Name: NK3 Black 
Type of steel: Böhler N690
Hardness of the blade: 60 HRC
Length of the blade: 70 mm / 2.75” 
Thickness of the blade: 6.3 mm / 0.25"
Overall length: 153 mm / 6.0”
Weight: 80 g / 2.82 oz
Blade type: Plain
Type of the blade: Tanto
Handle type: Böhler N690 Steel
Sheath: Kydex 
Producer: Extrema Ratio, Italy

Frequently asked questions

How can I contact with shop customer service?

The best solution is to send an e-mail to It is also possible to contact us by phone from Mon. to Fri. 9.00a.m. - 5.00p.m. The number +48 533 372 997 combines the contact to shop customer service and service.

What payment methods do you support?

In the case of a stationary store, of course, by card or cash, while online orders can be paid by BLIK, credit card, online transfer and PayU installments, PayPal, traditional transfer or PayPo deferred payment.

How many days do I have to return the product?

The statutory period for returning online orders is 14 days, however for your comfort we have extended this period to 30 days from the day of purchase.

Is overseas delivery possible?

Yes, we offer delivery throughout the European Union, we use UPS and GLS, costs as per the price list.

For shipping to Germany, Austria, Czech Republic, Romania, Hungary, Netherlands free delivery is available for purchases over €99 and for other selected countries over €199*.

Why the difference in order processing times?

We use several warehouses, including external ones, so in order to complete an order we sometimes need a few days to bring some products.

What do order statuses mean?

Pending Delivery: At least one of the products you ordered needs to be moved from an outside warehouse. This generally extends the lead time by 1-5 days.

Pending payment: Your order is pending payment. Once your payment has been posted, we will begin processing it immediately.

Packed: Your order is being assembled in our warehouse. It will be forwarded for shipment shortly.

Ready to ship: Your order has been packed and is awaiting pickup by courier.

Stopped: Your order is being held up. This may be due to the goods you have ordered not being in stock. Please contact our Customer Service team.

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