Click to enlargeEXTREMA RATIO MF1

(Please click image for larger picture)

FREE Priority Mail shipping to USA and Military Addresses

The MF1 is basically a smaller version of the MF2 and has all the characteristics of the larger version including the glass breaker on the end and the bridge clip. It has a more conventional handle than the MF2. Makes a great EDC.


The Extrema Ratio MF1 blade is a very strong drop point. This drop point terminates in almost a spear point. Duel thumb stubs. Hand sharpened and sharp out-of-the box.


Ergonomically designed to give you an excellent grip. Also has a hardened window breaker. Reversible side to side clip with a tip up carry. This clip is a bridge clip that wraps around the end of the MF1 to allow only the clip to show to give you a concealed knife carry.


The MF1 actually has two locks. A dependable liner lock. And an additional manually activated security lock that you should use for addition safety when the MF1 is open.

Total Length of Knife (Including Clip): mm 225.55 (8.88 inches)

Length of Closed Knife (Including Clip): mm 131.83 (5.19 inches)

Blade Length: mm 96.52 (3.80 inches)

Handle Length (Excluding Clip): mm 127.25 (5.01 inches)

Weight of Knife: g 164.43 (5.80 ounces)

Blade Thickness (Widest Part): mm 4.24 (.17 inches)

Blade Width (Widest Section): mm 32.00 (1.26 inches)

Closed Knife Thickness (Excluding Clip): mm 15.24 (.60 inches)

Blade Steel: Bohler N690 cobalt stainless steel*

Blade Hardness: Rockwell 58 HRC

Grinding: Flat grind

Serrations on Blade: No

Lock: Liner lock. Plus additional security lock

Handle Material: Anodized anticorodal aluminum alloy **

Clip: Yes. Reversible bridge clip

Window Breaker: Yes


* The blade is made with N690 cobalt stainless steel; a high performance steel with excellent cutting and sharpening characteristics. This steel is also used in the butchering industry and to make surgical instruments.

** The handle is made of black anodized anticorodal aluminum, an aluminum alloy that is very strong and corrosion resistant.

Availability: Usually ships in 2-3 business days

133mf1don't pay this advertised price $335.00BUY NOW $268.00
It is the responsibility of the buyer, not Xtreme Knives, to determine and follow all local, state, federal and international laws and ordinances regarding the purchase, possession, and use of any item purchased from us.

Copyright 1999 - 2021 Xtreme Knives (tm). All rights reserved worldwide.