My Epic Extrema Ratio MF-1 review

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Apr 9, 2011
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156
MF1_open.jpg


It would be safe to say that there are a limited amount of reviews on the folders produced by Italian knife company Extrema Ratio. Perhaps this is due to the fact that they are not manufactured where the majority of the tactical market is based, or because their knives sit in a somewhat higher price bracket than the popular North American manufacturers (with a few exceptions such as Strider).

http://www.edgeobserver.com/wp-content/uploads/MF1_open_2.jpg

This has always been a bit enigmatic to me namely because Extrema Ratio has single handedly been contracted to design real use edged weapons and survival tools by the military more so than many of their competitors combined. In fact, many companies can only make claim that their products are often used by military and law enforcement personnel, a claim that is not quantifiable and somewhat speculative. Additionally, Extrema Ratio are an official supplier of the Italian Armed Forces, NATO approved and their factory is ISO 9001:2008 certified.

So, what about the knife?

Well, the knife that I am going to look at is the Extrema Ratio MF1. The MF (medium folder) sits in between ER’s basic folder series (BF) and their heavy folders (these don’t have a prefix for some reason). The “MF” is a bit of a misnomer however as there is very little that is “medium” about these knives; from the first look, you realize that this knife is designed and manufactured with rigid quality control specifications, out of very good materials and is cared for in every step of the process right down to the boxing. The combination of all these factors also demands a high premium (about 320$).
A knife in this price range should encompass several design and functional elements. It has to be durable and the fit and finish needs to be impeccable. The MF1 meets this with flying colors.

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The long sloping dropped point blade has a swedge that continues all the way to its over sized jimping and thumb ramp. The cutting edge has a soft belly that quickly sweeps to a point, making it an excellent thrust and slash cutting blade, lending itself to both of these tasks equally.
The blade is .157″ (4mm) at it’s thickest (.039″ or 1mm thicker than most blades at this size) and about* 1.4″ (3.5 cm) at its widest. With a long, gradual flat grind it seems very durable right up to the tip which would likely survive modest prying jobs. As with the majority of Extrema Ratio knives, the blade has a matte black finished that the company calls “burnished”. This is a carbon-nitride coating and very closely resembles ZT’s DLC coating or Spyderco’s BodyCote. It ships very sharp.

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The hard anodized anti-cordal black aluminum handle has several features that many other knives do not. Firstly, there is a large safety that can block the liner lock from giving way when subjected to heavy cuts or shock. This can only be engaged when the knife is in the open position and is much more reliable than many other lock safeties. It does not allow any side to side play of the liner lock. The liner lock itself has a very small thumb tab. Its size and position makes an accidental release unlikely, but also makes this knife near impossible to close with one hand.

http://www.edgeobserver.com/wp-content/uploads/MF1_glass-breaker.jpg

At the end of the handle there is a sharp tungsten-carbide glass breaker. This is nestled subtly in one side of the scales in between a slot cut in the low ride pocket clip. It can be used very effectively with the knife closed because the blade tang’s design intentionally utilizes the stop pin in both the closed and open position, therefor holding the blade firm in your grip. Many other knives with butt end glass breakers and pommels have significant inward blade play when squeezed because they aren’t designed for this type of load.

The handles profile deters slip that might otherwise be problematic with smooth all aluminum scales. A large flat area milled out for your thumb and forefinger allows for better grip and extra purchase on the thumb studs. If these aren’t enough features there is also a circular indentation on both sides of the handle to help you switch from standard to reverse grip.

My only small criticism of this knife is that the lock toggle is red. For some reason ER decided that all of the MF models would share the red lock toggle while the rest of their line, with the exception of some of their emergency multi tools, don’t have this.
Although not a problem for me, this knife does not have a flipper (other MF series knives such as the MFO does) nor is it spring assisted so it doesn’t have the snappiest one hand deployment. If it is an issue for you and your jurisdiction allows, you’d want the MF1 full auto instead.

Over all this is an excellent knife. At this price range, once the material use, build quality and features are considered, the competition is very, very sparse. This is even more true when Extrema’s experience, garnered from collaborations and contracts with the Military, is factored in.

To conclude, if you are looking for a premium folder that is still a great value the MF1 is a solid choice that will bring you many years of reliable professional use.

Specs
Total Dimensions and weight :
Length opened 8.86″ (22.5 cm)
Length closed 5.12″ (13 cm)
weight 5.82 oz (165 g)
Blade :
Length : 3.6″ (9.2 cm)
Steel : Bohler N690
Thickness : (4mm)
cutting edge: 3.4″ (8.5 cm)
ambidextrous thumb studs
Black carbon nitride coating
Lock :
Liner Lock with safety
Handle :
anti-cordal Aluminum
Stainless Liner on one side

If you guys like my review, please check out my blog: http://www.edgeobserver.com

Thanks for taking the time to read this, I appreciate it.

~EO

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Extrema ratio makes nice knives I have a col moschin and it's a great fixed blade. I do think they are very expensive and perhaps not really worth so much more than some more affordable options.
 
I would agree that these knives aren't cheap, especially their fixed blades.

Could this be because many of their fixed blades are actual mil-spec knives? Their fixed blades are usually pretty damn beefy material-wise too aren't they? Don't they come with a pretty well made sheath? Admittedly I don't know much about their fixed blades and won't likely be buying any. The site I maintain only deals with folders....

I really have more questions there than answers concerning the fixies ..... Maybe you could fill in some of the blanks with a review on your knife....

Their folders on the other hand, are in my experience are totally worth it. When you compare something like the MF2 to a Strider PT which is the same price, you are getting quite a bit more for your money. Not to say that I think that the Strider's aren't worth it, I think that they are beautifully made functional knives. I'm just saying the MF1 is a better value for the size ( pt is 6.5 inches and the MF1 is 8.86 )and handle features (low ride clip, safety lock and glass breaker) ...
 
Honestly,the sheath for the col moschin is the best sheath I have ever seen. The blade thickness stock is a quarter inch so it's pretty beefy but the blade profile is more of a dagger style even though it's single edged. It's a great knife and I think anyone with the money and in the military should really consider getting one. It's a good knife but where it really shines is the whole package sheath+knife. I have never owned a strider but I doubt I would choose one over the ER because it is even more expensive and with a way lower quality sheath.
 
I found some pictures of the knife and sheath..keep in mind every strap can be removed like the front buckle strap.





This picture shows the front strap buckled in

 
Nice review their knives sure look heavy duty for the most part. This one looks pretty awesome to me too.

col2g.jpg
 
Hopefully I'll be getting my hands on another couple of ER's soon. I just received a BF2 TTS and will be doing another review on it... Thanks again for reading!
 
Hopefully I'll be getting my hands on another couple of ER's soon. I just received a BF2 TTS and will be doing another review on it... Thanks again for reading!

I've been thinking about getting a FULCRUM II for some time now. I particularly like the limited edition "Desert" one - really a striking knife. In fact, mabye I'll just go buy one right now....ugh. decisions.

you say they make an AUTO?? - this I did not know....

I will have to investigate further...
 
I was considering the fulcrum fixed blade before I made my decision..Extrema Ratio may be expensive but yes there knives are really attractive and striking.
 
Capolan, The Fulcrum 2 folder is a great knife. I don't own one yet but will be reviewing it soon. The blade on that knife is 6mm which is pretty amazing. I like the desert model too. I think that the Nemesis is my favorite from their heavy line though. I like the long plain edge blade over the combo on the fulcrum. I just checked and it is a 6mm blade too. It's pretty mean looking.

FYI the auto is the MF1 FULL AUTO
 
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