An Exacto knife is a precision cutting tool commonly used in arts, crafts, and various professional fields. 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 for their versatility and accuracy. They come in various blade shapes and sizes, making them suitable for different tasks, from simple cutting to complex detailing. Proper safety precautions should be taken when using an Exacto knife to prevent injuries.