A utility knife, also known as a utility knife, is commonly called a utility knife in English-speaking areas. It is a knife mainly used for cutting and cutting. It usually uses only the tip of the knife for cutting, carving and dotting. Utility knives are very common in art and handicraft production, so they are also commonly known as carving knives or wallpaper knives. The blade of this kind of knife is relatively brittle, and the blade cannot be extended too long when used to avoid breaking. The hardness and durability of the blade of a utility knife vary depending on the material, and it is generally made of iron or steel.
The design of a utility knife usually includes a plastic handle and a blade, and adopts a pull-out structure to facilitate the replacement of the blade. The blade is mostly beveled, and after being blunted, it can be broken along the score line of the blade, so that a new blade appears, which is convenient for continued use. Utility knives come in a variety of sizes, and the common blade widths are 9mm, 18mm, 25mm, etc., among which 18mm is the most common. The blade material of a utility knife is generally SK5 or SK2 in carbon tool steel, which has good hardness and wear resistance.
Utility knives are widely used, mainly for cutting soft materials such as paper, plastic, cloth, etc. Its correct use and maintenance are essential to extend the life of the knife and ensure safe use. When holding the knife handle, make sure your fingers do not slip onto the blade to avoid accidental injury. In addition, choosing the right knife handle and knife holding gesture according to the hand shape is also an important factor in improving comfort and efficiency.