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Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK

Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK
Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK
Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK
Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK
Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK
Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK
Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK
Extrema Ratio - T4000 S Black Knife - 04.1000.0436/BLK
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Product code: 21047
Manufacturer: Extrema Ratio
  • T4000S is a continuation of the collection tanto knives made by Extreme Ratio. This is the best choice for those who love the Japanese profile of the blade, and do not want to give up the tactical hilt and sheath.
314,50 EUR
/ pc
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Buy and receive: 1258pts
Free delivery from 74,75 EUR
Replace or return up to 30 days
T4000 S - this is continuation of the Extreme Tackle collection name by tanto. Offer for those who love knives with a Japanese blade profile, and at the same time do not want to give up tactical hilt and tactical sheath. In expert hands, this knife is incredibly fast. Perfectly balanced (on the blade) with above-average strength. Full-size knife with full tang construction. A typical tool for a professional.

Blade - radically durable, 4 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 58 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 full flat cut (Flat grind), which maintains high sharpness of the cutting edge.

  Handle - full-size 5” type FH (Full Handle) type used in Extrema Ratio knives. Textured, non-slip linings with rubber-like properties, made of elastic thermoplastic Forprene (elastic return, softness, resistance to chemicals), ensure a secure grip even with wet hands. The steel head with an oval hole (lanyard hole) that allows you to pull a leash or a safety rope can act as a hammer / glass breaker.

Sheath - tactical made of abrasion-resistant, waterproof nylon in black color. The case has a MOLLE compatible attachment that allows you to carry the knife in a vertical position.

Technical specification:
Product number: 04.1000.0436 / BLK
Name: T4000S Black 
Type of steel: Böhler N690
Hardness of the blade: 58 HRC
Length of the blade: 174 mm / 6.9” 
Thickness of the blade: 4.0 mm / 0.16"
Overall length: 304 mm / 12.0”
Weight: 264 g / 9.3 oz
Blade type: Plain
Type of the blade: Tanto
Handle: Forprene
Sheath: Yes 
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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