US PRO Tools 23pc Whitworth Tap and Die Set, 2640. 1/8" Plug, 1/8" Taper, 3/16" Plug, 3/16" Taper, 1/4" Plug, 1/4" Taper, 5/16" Plug, 5/16" Taper, 3/8" Plug, 3/8" Taper, 7/16" Plug, 7/16" Taper, 1/2" Plug, 1/2" Taper.
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