The journey of the great switchblade knife starts from the 18th century and it is still going on in the 21st century. However, the enormous transformation has been done in these knives till now. There are a lot of changes made in the design and mechanism of these blades. But the two most important features of these knives are still the same, which are as follows: The blade is completely inside the handle. It will only come out when the user will press the button or sometimes the switch, which is placed on the handle. Some Popular Types of Switchblade Knife: Now let us tell you about types of a switchblade pocket knife. 1. Side-Opening Knife: This knife is very similar to a folding knife as in this kind of switchblades, the blade of the knife comes out from the side of the handle and this feature makes it the simplest and easiest type of knife among all. 2. OTF (Out-Of-The-Front) Switchblade Knife: This version of the switchblade is totally diff...