Benchmade Infidel OTF Double Action Out of the Front Falsely Advertised for Military & is Junk 

That is not a fake infidel. I took my brothers apart to see how its made and this is it to a tee. Don't be an asshat.

No I don't realize that at all. I realize that DA OTF knives use a spring to place the blade under tension just before releasing an internal lock that allows the blade to fly forward under it's own inertia. It is not "safe by design" but by engineering requirements. The genius of DA designs is they work in mirror opposition. The same spring that slings the blade out is used to sling the blade back in! As long as nothing happens to interrupt the blade's deployment the design works eggcellently, but it only takes the resistance of a piece of paper to stop the blade. DA OTF knives don't have any internal "rails" for the blade to come off, simply rear locks and front locks for the blade to lock up when it arrives using the mass-inertia of it's launch.

That is not exactly accurate. A double-action OTF works by "slinging" the blade forward to open, and backward to close. The spring is connected to a bar that bears against the blade base. this bar is actuated by the firing button. The blade is under ZERO tension when retracted, and when extended. There is a small lock inside that holds the blade in place when retracted, and it's mirror twin holds the blade open when extended. Pushing the button moves the internal bar that stretches the internal coil spring and places the base of the blade under tension. As the bar moves forward it eventually depresses the blade lock and the now-tensioned blade is release to launch forward under spring pressure, though it requires blade inertia to carry the blade all the way to the front lock. Basically once the blade is launched it's in free-flight until it goes full forward and the front lock clicks in. Not being able to penetrate a flimsy piece of paper isn't a safety feature, it's an engineering side-effect. There isn't any spring force applied to the blade beyond the instant it is released. All the mechanism that makes the blade go forward, it reversed inside the knife body to make the blade suddenly suck back in. When the blade is stopped by a butterfly's wing on firing it hasn't "derailed" at all, it simply lacked the inertia to carry forward upon striking an object. This is also WHY DA OTF knives CANNOT have super-tight blade to handle tolerances because that would add too much friction to make the knife work. For this reason you see all of the blade but the very base is cut-away or rebated to have zero friction with just a smidgen of friction at the moment of lock-up. The advantage of the DA OTF system is single-handed operation, and the fact that most normal people aren't going to use it to try and stab through a car door or chop down a tree. When stabbing into a human there is VERY LITTLE resistance for a double-edged blade, and flat bones such as the sternum offer little challenge as well as skull bone. If you want to see an OTF that will stab right through your head, go ahead and pick up a MT Halo V and do a live-stream video when you test it.

I thought I was the only one that had an issue with the music...why would you blast music in a "review" video

Yeah, me too.. otherwise my index finger would have been lost now..

This guy is definitely just a troll or a complete dumbass if he actually thinks the infidel is a bad knife.

He lost a lawsuit against Benchmade and has had an axe to grind with them ever since. He made many unfair videos about them, trying to cause problems for them and trying to damage their reputation. This man must be the most unpleasant business owner I ever came across. He calls his style "no nonsense", but it's mostly bad education and resentment. Somehow, he has convinced himself that he's smart and that everyone else is an idiot. I remember when he was trying to garner sympathy on one of his many websites after the trial. He has been making a fool of himself for a long time.

LE. MIL. And EMS get awesome discounts and customer service. Knife is made from start to finish in USA. People diss the infidel because they send it in for free sharping and Benchmade will replace parts that are slightly worn. The knife would function for years if parts were not changed. BM does it because they make quality products

yes it isnt real because it should say the patent number on the blade.

Also the Benchmade box in the video is fake.

No, because the spring is only driving the blade during the pre-tension phase right before it is released to launch forward. After that the blade is driving on inertia alone so anything it hits will stop it pretty easily. If you want a knife that can shoot the blade out and into a person you want a Single-action OTF with a strong spring such as the Halo V or VI.

Finally! Someone who almost understands how DA OTF knives work! With DA knives the spring only applies launching force for a brief instant before the blade is released and Sir Issac Newton takes over - inertia. Quality locks keep the blade fully extended during manual stabbing. Thank you for your knowledge!

A Chinese clone of the Halo V or VI for around $45. www.dhgate.com/product/hot-sale-black-microtech-halo-5-v-tanto-knife/543643374.html

It's not a safety feature. Microtech knives work the exact same way as do ALL double-action OTF knives.

Ignorance is indeed bliss in your world. While a designer of parts might CLAIM that the blade stopping upon hitting an object is a "safety feature," the FACT is it's all part of the design of DA OTF knives....period. When the button is pushed the blade is placed under tension by spring. About 1/4" later the blade is released and is launched forward - carried by it's own mass - inertia. It reaches full travel and is captured by the lock at the other end. This is why EVERY DA OTF knife can be forced to malfunction on firing by anyone who understands how they work. The best combat OTF will always be a SA where a powerful spring shoves the blade forward under full spring-pressure throughout it's travel. Such knives can indeed fire the blade fully into a human on contact. They do require manual retraction, but blade to handle tolerance will always be superior. This is why Microtech invented the Halo series...the next best thing to a fixed blade combat knife.

Lol

I own 6 of the brands named, and with that said, bench made makes an otf just as good and even better that most of those you named off... protech is my favorite hands down, it’s parent company microtech (son started protech) and paragon, and still bench made is just as good as those and a hell of a lot better than the others...

Your video sucks, and your knife is a fake/clone... I don’t care that this is 11 years ago, I just feel the need to say that...

Benchmade is kind of right on this. The basic design of ALL double-action OTF knives is a single or dual spring arrangement that places the blade under tension just before an internal lock releases it to fly forward (or backward). The method of operation is IDENTICAL to ALL other double-action OTF knives...not just some, but all because it is the way they much work.

Your "knowledgeable dealer" needs to go back to dealer school. DA OTF knives "misfire" against paper because the blade is flying forward under inertial with ZERO spring pressure after the instant of launch. There is no "safety feature" involved unless you want to believe marketing BS because ALL DA OTF knife blades will come to a halt when fired into paper. SA OTF knives are far more suited to CQB because the blade is driven forward FULLY by a powerful spring that can be sized to push the blade fully into a human with the knife in contact. The MT Halo series is an example of such a knife.