The vintage 40 piece tap and die set, made in Japan, is a classic tool set designed for creating threads in various sizes. The set includes both taps and dies, all made of durable steel. With a standard (SAE) system of measurement, this set is perfect for professionals and hobbyists alike who need precise and accurate threading tools. The 40 pieces provide versatility for a wide range of projects, making it a valuable addition to any workshop or tool collection.missing gage