When the utility knife is used normally, only the tip portion is usually used. Cutting, carving, and punching are the main functions. Because the blade is very brittle, it can't extend too long when used. The hardness and durability of the blade (the two concepts in the utility knife) are also different because of the different texture of the blade. The choice of the handle should also be selected according to the hand shape, and the grip gesture is usually described behind the package.