Tap and Die set
Machine screw and fractional NC-NF with round dies
Plug style taps. See the 2nd picture for the complete list. This comes in a nice plastic molded case (colors may vary). When you need a high carbon tap or a die, you'll have one and it will be a high quality one to boot. Made in USA, premium quality. This is not a cheap import. A set you can be proud of.