The Snap On Tools TDTDM500B 80 Piece SAE and Metric Master Tap and Die Set is a high-quality, durable hand tool set designed for automotive use. Made in the United States by the reputable brand Snap-on, this set includes both SAE and metric taps and dies. With a total of 80 pieces included, this set is perfect for automotive professionals and DIY enthusiasts alike. The set is sold as a single unit and comes with a manufacturer part number of TDTDM500B. Additionally, it is important to note that this product may have California Prop 65 warnings associated with it, which can be found on the manufacturer's website.