An X-Acto knife is a precision cutting tool commonly used in arts and crafts, model making, and various DIY projects. It features a sharp, replaceable blade that allows for intricate cuts and detailed work on materials like paper, cardboard, and plastic. The handle is typically made of metal or plastic, providing a comfortable grip for users. These knives are popular among artists, designers, and hobbyists due to their versatility and accuracy. The blades come in different shapes and sizes, catering to specific cutting needs. Safety is important when using an X-Acto knife, so proper handling and storage are essential to prevent accidents.