Extrema Ratio RAO Video Test Completed No Destruction

Joined
Jul 7, 2006
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Blade length 4.72"
Closed length: 5.59"
Total length: 10.28"
Blade thickness: .240"
Blade material: N690 Stainless Cobalt Steel
Blade length: 4.72"
Closed length: 5.59"
RC: 58
Handle: Anticorodal aluminum alloy

The RAO next to my Spyderco Endura
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I have had my eye on the RAO since it came out. I finally decided to purchase one.

I decided to put it through a few tests just to try it out and see if it would suit my needs.

I bought this folder because it looked big and tough and I wanted to add it to my civilian utility belt. I knew it was big but man until you see it in person you don't really know how big it is. Anyway it is big.

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The fit and finish on it is first class and I expect no less for 360.00 bucks. I swore I would never buy a folder that cost this but this is not an ordinary folder. It is just built like a tank.

The lock is very simple in design just a spring loaded drop cross pin. It locks very secure and tight. This lock also has a nice little bonus when you baton with the knife also.

The sheath is very nice but big. You can carny the knife folded or the sheath has and extra pocket for carrying the knife in fixed blade mode. It also has a pocket containing the included diamond stone. It is a very well build sheath with plastic reinforced belt loops and several carry options.

Onto the test.

Chopping: Since this is a heavy hard use folder I wanted to to something considered hard for a folder just to prove to myself I got my moneys worth. I chopped all the way through a 2x4 and darn the RAO actually chopped better then some of the fixed blades I tested. I got through it in no time and with little energy. I did not expect this. But Hell yes. :thumbup:

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Cutting tests: The knife came very sharp out of the box. After the Chopping I was able to easily cut some 10,000 pound webbing and some card board. The blade is .240" thick but it cuts very well.

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Tip Penetration: The tip on the RAO is different but sharp and it is thinned out enough to get some good penetration. I would not do this test with most folders without using some type of safety because I value my fingers. The RAO comes with one installed the extra locking pin keeps the blade from closing should the primary lock disengage. Using a inverted reverse grip I stabbed into a phone book getting decent depth. I was never afraid of the blade closing and cutting my fingers. The safety pin is not only functional but it adds mental comfort so you can go at your target hard with no fear of injury. A great feature.

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Batoning: There has been discussion about leveeing the lock disengage during this but after seeing how this knife is made first hand I was not worried about lock failure or damage especially with the safety pin in place. The blade just has no where to go so the chances of lock damage during batoning are low. With the primary lock engaged and the safety pin in I batoned a 2x4 whacking the tip good. No damage occurred to the blade lock or handles. Also because of the vertical lock position when you baton down the inertia created drives the lock pin down into the blade catch. This is an added bonus the lock just gets more secure as you hit the blade downward. However I would not baton without the safety pin in place.

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Overall: I'm happy with it. The RAO is tough and functional I feel I only scratched the surface at it's full capabilities of hard use though. Another time perhaps as I plan to keep this one for my own personal use.

The videos are in three parts posted at www.knifetests.com

Enjoy the videos. They were made for you :thumbup:
 
That things monster!:eek::thumbup:

I still like my Good ole' RD-4....

by the way do you have any plans on testing Ranger.....

they are dirt cheap and can be abused beyond reason..;)
 
Great review and test Noss, course after reading your others I would expect no less!:D I only have a few questions; how stiff is the primary lock to disengage, do you think it could accidently disengage on its own? Also, could you post a picture of the sheath both for the folded knife and the open carry knife? Any plans to go with a "smaller" sheath if the oem is too big?
 
That appears to be one of the ugliest knives I have ever seen. :D Just can't see why one would want to carry something like this. It has the weight of a fixed blade, but not its performance. The only reason, perhaps, could be legal - where carrying fixed blades is illegal, one could carry that monstrosity. But if the brown stuff hits the fan, and a LEO or a court gets to take a look at that thing in a, say, self-defense context, whoever carried that thing will probably be crucified. Its appearance just screams tactical de-animation instrument, so that pretty much eats away the legality advantage. That said, thanks for the vids again. It certainly shows that you can in fact baton with a folder without breaking it. ;)
 
I think the design is aimed at combat troops b/c while keeping the strength (and weight) of a fixed blade it is smaller on the belt/webbing, more streamlined.
 
I think the design is aimed at combat troops b/c while keeping the strength (and weight) of a fixed blade it is smaller on the belt/webbing, more streamlined.

Yeah, it's apparantely designed for an Italian military group. I find the design to have very few advantages, though - there are fixed blades both tougher and with a longer blade than that that weigh notably less, and also cost less! Then the only advantage that remains is the smaller overall length, this being a folder. But is that advantage enough, considering the disadvantages, like the issue of having to always open the knife to get the blade out versus a fixed blade where the blade is always ready for action? It just strikes me as very weird, but then again, there is a major folder craze going on both among users and the legislative branch, so perhaps that goes a far ways in explaining the idea behind a blade like this.
 
mmmotorcycle: A ranger is at the top of my to do list. Hopefully after the first I can get to one. It is big :D

cutter17: Thanks..The primary lock is easy to disengage. The spring tension is not very much. But it does require you to place two finger one on each side to pull up on the lock. The lock seems very strong and I don't ever see it coming undone during use in most cases. The lock bar seats deep into the blade catch. There is constant downward force bing applied to the lock bar by the spring. I'll post some photos of the sheath tonight. I haven't carried it out and about yet. So I don't know yet how I will like it on my waist. If I need to find another slimmer sheath for it I will.

Elen: It is ugly I guess compared to many folders. They did not skimp on materials to make it. They went all out trying to make it tough. I agree with you about this compared to a fixed blade in the field. I don't know what there overall intention was for the RAO. They don't give many details on their site. I do feel it gives you some capability's of a fixed blade while given you some options so it may not be all that bad. I can fit the RAO safely in my jeans pocket and still have a very large strong blade for hard tasks. So I have a few carry options now I didn't have before.
 
That a really cool knife. Good pics, i have a Spyderco like yours so that knife must be freakin huge!
:eek:
Good job on the videos as well!
:thumbup:

"And now for something completely different" (lol) Noss you said a while back that you had finished testing a Mora clipper, are you going to post video or start a thread on that test?
:)
 
Thanks for the pics Noss. That is a pretty cool looking sheath, though it may be a bit bulky...........course that knife ain't no slim jim itelf! I like it.:D
 
tholiver: Thanks. When you see it in person you are going to be shocked
by it's size.

I have completed the Mora clipper video tests outdoor/destruction I just need to get them online. Yes I will start a thread here on it. Shouldn't be much longer.


cutter17: Your welcome. I carried the knife in it's sheath today as I went out and about today. It's not bad at all. It didn't get in the way of anything and it was very comfortable. It has 2 heavy belt straps so it does not twist and move around on my belt. I'm going to stick with it.

It would be nice if I could put my BH Gladius flashlight on the side of it as well. I may rig something up for it.

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I think I might be buying one of those. This is soooo over the top, it is already cool again. It is also good to see a ridiculously overbuild folder being sold with out a ridiculously overbuild ego.

You know, knife prices are completely nuts in Europe. A BM Snody costs you 209 Euro, and the RAO costs you 220 Euro.... mmmmh.
 
Nice job Noss4!
I played with it in Italy last Summer and really had no clue what it was for. But your'e right, built like a tank. I did see several other ER knives that I likes way better. The Nemesis is intresting too.
 
you tested a mora aye noss
I was gona ask you if you would ever test one on the KT forums last night
well looks like you beat me to it
 
Sorry for the off topic but... are there any reviews on Extrema Ratio fix blade? Cheers!

Frids
 
Most impressive.

Actually makes me think about getting one.

Do a long term, i.e. 6+ months, review when the time comes, as it would be appreciated.
 
Hi Noss4, could you please work with the knife bare handed while doing "hard use" and long term wood carving/Notching/drilling/bark peeling duties and then do them in Cold freezing Weather and report to us how the knife feels in your hand afterwards? That would be great.

Also, I have concerns about any handle that is made out of any kind of Aluminum for hard use, can you tell me if there are thick steel inner scale liners and if so just how thick they are? Any idea what metal they may be? Thanks" 'It kind of looks like there are steel inner liners but just can not tell for sure in the videos or pictures.

The blade tip reminds me of an overly broad Roman Gladius should be plenty strong.

MTMM
 
HoB: that is some crazy pricing. I say go for it.

macgregor22: I should have it online soon. It's fairly tough for what it is. Great carbon steel for it's tiny price.

Moodino: Thanks.. I like the looks of many of their other folders as well. especially the BF2 and the MPC.

U.C.O.K. Do a search here and on the net I'm sure they are plenty.

orthogonal1: you got it.

Mike The Money Maker: I plan to go outdoors in February. I'll take it with me and video some wilderness use barehanded doing the things you mentioned. The grip is not the most comfortable thing barehanded as I stated in the videos. I don't have much freezing weather were I am but I'll make it a point to use it when I do and report back on it.

The RAO does not have steel liners. Just the Aluminum handles. They are very thick and heavy. They seem very strong and tough. When I was chopping the knife feels very solid. Here is a link on some Anticorodal Aluminum alloys. http://www.sag.at/Anticorodal-R-04.567.1.html I don't know what grade they use in the RAO.

The tip looks very tough on it but I haven't used it for anything hard yet.

I'll update this thread as I do.
 
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