visa-1 united-kingdom-hh paypal-1 metro-card master-card right-arrow-1 euro-hh arrow-down-filled-triangle delivery-truck box front-store search man-user shopping-cart arrows keyboard-right-arrow-button pinterest youtube twitter-logo-silhouette American Express Santa Hat

Extrema Ratio Nemesis Black

18+ Age Restriction Icon

Out Of Stock

Stock due in 4 - 6 Weeks

Be the first to review this product

Extrema Ratio Nemesis Black

test 1Extrema Ratio Nemesis Black Thumbnail Imagetest 2Extrema Ratio Nemesis Blacktest 3test 4
test 1Extrema Ratio Nemesistest 2Extrema Ratio Nemesis Blacktest 3Extrema Ratio Nemesistest 4 Extrema Ratio Nemesis
test 1Extrema Ratio Nemesis Black Thumbnail Imagetest 2Extrema Ratio Nemesis Blacktest 3test 4

Extrema Ratio Nemesis Black

18+ Age Restriction Icon

Out Of Stock

Stock due in 4 - 6 Weeks

Be the first to review this product



Back Order Item

Please note that this item will be dispatched once in stock. We estimate that stock will be here in 4 – 6 Weeks


Extrema Ratio Nemesis Black

Extrema Ratio Nemesis Black



The Extrema Ratio Nemesis Folder serives was developed to substitute, or compliment, a fixed blade. With it's well tested locking system: The Back Lock. To reach the maximum level of safety while using the folder and to reduce the risk of accidental closing of the blade, the knife is equipped with a manual rifle/like safety system. Every part of the Extrema Ratio Nemesis are milied with CNC high precision milling machinery. The assembling, quality control and sharpening are done by skilled craftsmen. All the screws, pins, and clip are in burnished stainless steel. The blade, lever and tang are covered with a Testudo coating which is very resistant to abrasion and oxidation.

The blade is made with N690 Cobalt Stainless Steel which is a high performance steel with excellent cutting and sharpening characteristics. The blade is a flat grind and has 58HRC hardness.

The handle is made of black anodized Anticorodal, a type of aluminium that is very strong and resistant to corrosion. The end of the handle, is made of hardened NB90, is an effective glass breaker.


Code ER-04.1000.0154/BLK
Limited Edition: No
Brand: Extrema Ratio
Blade Material: N690 Stainless Steel
Blade Length (cm): 11.5
Blade Thickness (cm): 0.6
Closed Length (cm): 14.50
Overall Length (cm): 26.0
Blade Hardness (HRC): 58
Blade Type: Plain
Blade Shape: Drop Point
Blade Finish: Black
Grind: Flat
Handle Colour: Black
Handle Material: Aluminium
Lock Type: Back Lock
Sheath: No
Pocket Clip: Yes
Product Weight (g): 218


  1. Perfection in a folder, EDC or battle readyReview by
    When a military knife becomes available to civilians, people either understand it or they just collect them. ERs game is the top of the military knife field and the boundaries are always pushed beyond the scope of other companies. The refined click as this knife locks, the sleek penetrating blade, the strength of the thickness means it will NEVER let you down when you need it on the battle field. The secondary lock for open or shut can prevent it being used against you, while the rear can help as a compliance tool. Tested in active theatre and abused beyond its spec it's still working perfectly. It's not made as a survival tool, but when you need to survive it won't ever fail you. Get one for your other half if they serve! (Posted on )
  2. Best Extrema Ratio FolderReview by
    The only way this knife could be improved upon would be to double edge a portion of the excellent blade.

    In a similar fashion to the new Col Moschin.

    Use a little lube on the secondary lock for silent functioning.ˇ

    It is otherwise flawless.
    (Posted on )
  3. last a lifetimeReview by
    Just awesome. So solid I have given it a few good tests and nothing fazes the knife it really does work as a fixed blade knife you could cut a tree down given enough time. It is just solid and awesome I can't say enough good about this knife. (Posted on )
  4. lynd66Review by
    This knife is solid built like a tank. Out of the box it's sharp and feels good in the hand, the recess near the front allows a good firm grip and the large size of the handle gives plenty of grip options (if you need them). The only drawback is that when you open the blade and lock it there is a very loud snapping sound, the back lock itself is VERY strong, this means that you can't open and close the blade with one hand. The secondary safety is good but with the strength of the back lock it seems an add on but none the less it's useful. (Posted on )

Write Your Own Review

You're reviewing: Extrema Ratio Nemesis Black

How do you rate this product? *

  1 2 3 4 5

Questions & Answers

464 PreOrder

You may also be interested in the following product(s)

What is this?

*Please note this service is in the Beta stage so you may receive messages that are unrelated to your chosen categories.

Get the latest news and products updates with Heinnie’s Push Notification service!

This service is a handy tool that keeps you up-to-date with all the latest news and offers that Heinnie has to offer! You’ll receive instant notifications about Heinnie news, such as:

Brand new items to Heinnie Haynes
Item re-stock
Special offers
And more!

Once subscribed, you can pick and choose what categories you receive notifications for, making it personal to you. You can even turn the notifications on and off, at the flick of a switch.

Fancy receiving instant Heinnie® notifications? Be the first to know about our offers, product updates and much more

Send me messages related to:

  • Apparel

  • Carry

  • Knives & Tools

  • Lighting

  • Shelter

  • Survival

  • Urban Survival

  • Watches

Personal Subscriptions:

  • Mass Message

  • Abandoned Cart