New old stock will have signs of aging. The Mac Tools 6536DIA SAE Hexagonal Die is a high-quality hand tool designed for threading applications in vehicles. With a 3/8″-24 NF size and 1″ shank, this single item die from the trusted brand MAC is perfect for use in garages and workshops. Made in China, this tool is ideal for professionals looking to create precise and reliable threaded components in their automotive projects.