Tools are devices used as an instrument, utensil, implement, machine or an apparatus depending on how they are being utilized. One example is the utility knife, a cutting device used in various trades and crafts. It is commonly used in factories, warehouses or in situations wherein the tool is often used to open boxes, packages or rip off tapes and ropes. Utility knife is designed to be light, handy and easy to use. They can be fully retracted, the blade partly extended, segmented or “snap-off” blade, light duty handicraft knife or with a disposable razor blade.