How do otf blades work




















A double-action knife is ideal for everyday use. It features single button deployment and retraction. This feature makes it ideal for outdoor excursions and do-it-yourself work.

In these settings, you may frequently find yourself in need of a knife, but only have one hand available. OTF blades are also highly efficient. Finally, double-action blades are fun. The following seven maintenance tips will show you how to maintain your double action, OTF knife. You need a few things to do the job right. To begin with, you want to use a quality knife lubricant. For example, you should use gun oil, Rem oil, or WD You also want to use a clean, soft rag to remove any debris.

Finally, you need a precision screwdriver to disassemble and reassemble your OTF knife. Remember to work safely when cleaning your double action knife. If you do it right, you can move the handle in out of the blade freely. You need to clean your OTF knife more than once a year.

Clean it regularly for optimal performance. As far as states go, some prohibit the sale, ownership and carrying of switchblades, including OFTs, outright. Three states allow limited Ownership or carrying of OFTs. They are; California, New York, and Maryland. All other states allow both ownership and carry of OFTs, at least within certain size limits.

But be advised that all states can, and frequently do, change their laws regarding knives, without notice. Stay informed. In addition to state laws, Counties, cities, parks, and private buildings can also set their own rules for allowing, or not allowing OFTs or any other knife, for that matter , and under what conditions.

Know the regulations before you carry an OFT anywhere. All these regulations beg the question; Are automatic knives, including OFTs, any more dangerous or deadly than any other knife? The answer to this is a resounding NO! Just about all knife laws in the US, in my opinion, besides being totally unconstitutional, are there because of politics, and nothing else.

A knife, is a knife, is a knife. Knives are not great weapons, no matter what style they are, because they can be defeated by almost anything, like clubs, canes, sticks, rocks, bricks, belts, shoes, firearms, slingshots, and even bare hands.

But they are indispensable tools. I got this Lightning from a local dealer. I have to admit, the bright yellow scales were very attractive, and make the knife easy to find if you drop it. The AUS-8 blade was pretty sharp, but a few swipes on my stones improved the edge greatly. AUS is equivalent to C, which is the low end of what I would consider acceptable knife steel. The construction seemed OK, but not great. The screws were pretty cheap, and a few were a little loose. The blade flicked in and out smartly several dozen times, before I tried using it for anything.

The spring became wedged, rendering the knife non-functional, and the blade seized. Shaking it repeatedly finally freed the spring where I could pull the blade all the way out, and retract it. Then the knife started working right again. Cutting tape, paper, and string was uneventful, but shaving wood made the blade feel loose. For safety reasons, I discontinued further testing. For looks, I give this knife 4 out of 5 stars. But for use, a dismal 2. It is basically an expensive letter-opener.

Benchmade was nice enough to send an Infidel to a local knife dealer so I could pick it up legally, for testing and review. Thanks, Rick…. The fit and finish of the Infidel was about what I would expect from Benchmade, well-done.

It felt good and solid in my hand. The blade was razor-sharp right out of the box. D-2 is excellent knife steel. The blade flicked in and out with authority, at least times. When opened against cardboard, the blade stopped at around the halfway point, but did not seize. It was easy to manually pull the blade all the way out, then retract it. The knife then functioned good as new. The Infidel cut paper, leather, and small wood like hot butter, with no discernible blade play.

These knives have a few basic internal structures in common which allow them to function properly. Holding the plate at either end is a coiled spring under tension, the force each exerts canceling out the other. The blade has an extended notch at the base. The slider on the handle is connected to a rocker switch which is connected to the metal plate. When the slider is pressed forward, one of the springs is pushed slightly out of alignment.

A fully serrated knife is best suited for things like cutting rope. However, they are a bit difficult to sharpen if they become dull. When your knife is for more general things, a partially serrated blade is an excellent choice. It gives you the advantage of both a straight and serrated blade. Most modern knives are constructed from stainless steel, but depending on the other ingredients determines the quality of the metal, and this is a factor when selecting a knife.

Basic considerations are:. Blades considered good quality stainless steel are often made in Asia. They are a substantial value but tend to be softer and therefore require frequent sharpening. A better grade stainless steel blade will contain more chromium, and this will make them more costly. They require a bit less maintenance, and sharpening is generally straightforward.

These blades are most usually produced in Japan or the USA. Due to their high chromium content, they will come at a premium price. These steel blades are excellent for demanding types of applications.

Getting your head around what an OTF knife is can be complicated.



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