We're working with a variety of tradesmen to solve endless fastening challenges: IRWIN® HANSON® Taps & Dies are the answer. Whether creating new tools from raw steel or repairing damaged and worn threads, achieving a precise fit is essential. IRWIN Industrial Tools® sets the standard for delivering quality every step of the way in your threading applications. 24-pc set in plastic case includes the following items: Fractional Plug Tap and 1" Hexagon Dies in sizes: 1/4" - 20 NC, 1/4" - 28 NF, 5/16" - 18 NC, 5/16" - 24 NF, 3/8" - 16 NC, 3/8" - 24 NF, 7/16" - 14 NC, 7/16" - 20 NF, 1/2" - 13 NC, 1/2" - 20 NF Pipe Thread Plug Tap and 1" Hexagon Dies in sizes: 1/8" - 27 NPT Threading Tools: Plain Die Stock - 1" Dies, Offset Adj. Tap Wrench No. 0 to 1/2"