A primary saw is a simple and portable saw tool used for cutting wood or other materials. It usually consists of a saw blade and a handle, with a fixed saw blade clamping device on the handle. The blade of a primary saw is generally short, ranging from 6 inches to 12 inches in length. It is suitable for some simple woodworking projects or small tasks such as pruning branches. The basic saw operation is simple and suitable for beginners to use.