Irwin 23614 Hanson Tap and Die Set, 39 Pc, Carbon Steel, UNC/UNF/NPT, Right Hand

These sets include a tap wrench, die stock, and solid round dies in a range of sizes. Solid round threading dies create external threads in one consistent size, reducing the likelihood of adjustment errors. Carbon Steel taps contain iron with a high carbon content. They're hard and strong, but can be susceptible to corrosion. Plug taps have 3 to 5 tapered threads. Sometimes called second taps, they create threads in through holes or blind holes that are deep enough to have 3 to 5 incomplete threads.