Use the Part # to find the dimensions in the chart below
Hand Tap - 1-15/16 Size 18 Threads per Inch Plug - ID: 1759-8160181
1759-8156220 1-15/16 8 Threads per Inch, TAPER,
1759-8156221 1-15/16 8 Threads per Inch, PLUG,
1759-8156222 1-15/16 8 Threads per Inch, BOTTOMING,
1759-8156240 1-15/16 10 Threads per Inch, TAPER,
1759-8156241 1-15/16 10 Threads per Inch, PLUG,
1759-8156242 1-15/16 10 Threads per Inch, BOTTOMING,
1759-8160120 1-15/16 12 Threads per Inch, TAPER,
1759-8160121 1-15/16 12 Threads per Inch, PLUG,
1759-8160122 1-15/16 12 Threads per Inch, BOTTOMING,
1759-8160140 1-15/16 14 Threads per inch, TAPER,
1759-8160141 1-15/16 14 Threads per inch, PLUG,
1759-8160142 1-15/16 14 Threads per inch, BOTTOMING,
1759-8160160 1-15/16 16 Threads per Inch, TAPER,
1759-8160161 1-15/16 16 Threads per Inch, PLUG,
1759-8160162 1-15/16 16 Threads per Inch, BOTTOMING,
1759-8160180 1-15/16 18 Threads per Inch, TAPER,
1759-8160181 1-15/16 18 Threads per Inch, Plug,
1759-8160182 1-15/16 18 Threads per Inch, BOTTOMING,
1759-8160200 1-15/16 20 Threads per inch, TAPER,
1759-8160201 1-15/16 20 Threads per inch, PLUG,
1759-8160202 1-15/16 20 Threads per inch, BOTTOMING,
