Knives are such an amazing sharpening cutting tool
which is being used since ages. They were discovered somewhat around two
billion years ago in the form of a simple cutting piece which was later
modified into various shapes and sizes (including handle). The modern knives
are constructed in two styles that are fixed blade knives and folding blade knives. These knives
gave a great contribution in the fields of technology, military, culture,
science and many more.