Irwin 39 piece Tap & Die Set Fractional 23614 from Irwin - Acme Tools
1pc ACME 11/16-8 left-hand high quality trapezoidal thread tap TR 11/16in-8 | eBay
Acme Taps - Jarvis Cutting Tools
Made in USA 1-1/8 - 5, Left Hand Thread, 2-9/16" Thread Length, Acme Thread Tap 4 Flutes, Spiral Flute, 5-7/16" Overall Length, 2G Class of Fit, Plug Chamfer - Walmart.com
12 Piece Carbon Steel NPT Pipe Tap and Die Set, 1/8", 1/4", 3/8", 1/2", 3/4" and 1" in Wooden Case | DWTNPT-SET | DrillsandCutters.com