Rescue knives is the main tools used for rescue and survival situations. Rescue knives were made for virtually anything involving survival and rescue situations.
The best rescue knife is constructed from a piece of metal, then that piece will run down through the handle. The handle is formed by a material attached to both sides. This is called a narrow tang. A full tang provides a powerful and sturdier support for the blade thus this is what you should look for in a rescue knife. A rescue knife that has a separate blade and handle will have lower durability.
Carbon steel and stainless steel are the two main components of rescue knives. Stainless steel are rust resistant and usable in wet environments. A stainless steel blade little maintenance compared to carbon steel. However, stainless steel is quite more difficult to sharpen. Carbon steel needs constant coating to prevent rust. Carbon steel rescue knives maintain their sharpness longer.
Then there is also the serrated an straight blades for rescue knives. A straight blade is much easier to sharpen. A rope can be easily cut by serrated rescue knives. There are rescue knives that share the same features.
There are also a variety of handles for rescue knives. We have the full or narrow tang and the hollow ones. The handles can be either made of rubber, or different types of polymers.
Getting a good rescue knife can be hard. But with research, you can be proud of what you get.