There are a large variety of small arms cleaning kits on the market. Some good, some not so good, some inexpensive, and some over priced.
Mankind has been depending on cutting edges from the very beginning of time. Early blades were probably sharpened bone and then later sharp obsidian and other volcanic rock. When the Iron Age rolled into steel making the knife truly came into its own. Every culture developed its own designs to meet specific purposes. Even here in America, Jim Bowie’s famous knife design is still one of the most popular of fighting knives.