Sliding Knife - Automatic OTF Knives

Automatic OTF Knives

An automatic OTF knife blade travels within an internal track or channel in the same manner as a manual slider or gravity knife. But the automatic main spring drive and button mechanism enclosed within requires a switchblade handle to be thicker or longer than a similar size gravity or sliding knife. The term "Slider" is usually not applied

There are two types of "Out the Front" automatic knives, DA-OTF (double-action) and SA-OTF (single-action). Double-action OTF knives deploy and retract with a multifunction button and spring design. Single-action OTF knives deploy automatically, but must be manually cocked or retracted to close.

Despite popular belief and movie magic, OTF automatic knives are not powerful enough to open when pressed against an opponent and then pushing the button. Double-action sliding autos are only spring-powered 10 to 12 millimeters; afterwards, kinetic impetus slides the blade to full open. Single-action OTF autos have a spring drive the full length of blade travel, but the size of the contained main spring is never large enough to drive a blade through much resistance. This is possibly a misbelief based on confusion with the ballistic knife which has a secondary handle tube with a robust coil spring for launching a fixed blade knife.

Read more about this topic:  Sliding Knife

Famous quotes containing the words automatic and/or knives:

    Natural selection, the blind, unconscious, automatic process which Darwin discovered, and which we now know is the explanation for the existence and apparently purposeful form of all life, has no purpose in mind. It has no mind and no mind’s eye. It does not plan for the future. It has no vision, no foresight, no sight at all. If it can be said to play the role of the watchmaker in nature, it is the blind watchmaker.
    Richard Dawkins (b. 1941)

    I am the love killer,
    I am murdering the music we thought so special,
    that blazed between us, over and over.
    I am murdering me, where I kneeled at your kiss.
    I am pushing knives through the hands
    that created two into one.
    Anne Sexton (1928–1974)