Overall Thread Shank Size of Length of length length dia. square square L ℓ Ds K ℓk HT-CI Hand Taps for Cast Irons Size Class Code Chamfer L ℓ Ds K ℓk No. of Type (for blind hole) Spiral Fluted Taps (inch) (inch) (inch) (inch) (inch) flutes Y86025 4P 7/16-20UNF GH5 3.156 1.437 0.323 0.242 0.406 4 3 Y86026 1.5P Y86027 4P GH3 (for through hole) Spiral Fluted Taps Y86028 1.5P 1/2-13UNC 3.375 1.656 0.367 0.275 0.437 4 3 Y86029 4P GH5 Y86030 1.5P Y86031 4P GH3 Y86032 1.5P (for through hole) Spiral Pointed Taps 1/2-20UNF 3.375 1.656 0.367 0.275 0.437 4 3 Y86033 4P GH5 Y86034 1.5P Y86035 4P 9/16-12UNC GH3 3.593 1.656 0.429 0.322 0.5 4 3 Y86036 1.5P Y86037 4P Hand Taps 9/16-18UNF GH3 3.593 1.656 0.429 0.322 0.5 4 3 Y86038 1.5P Y86039 4P 5/8-11UNC GH3 3.812 1.812 0.48 0.36 0.562 4 3 Y86040 1.5P Y86041 4P Carbide Taps Cemented 5/8-18UNF GH3 3.812 1.812 0.48 0.36 0.562 4 3 Y86042 1.5P Y86043 4P 3/4-10UNC GH3 4.25 2.000 0.59 0.422 0.687 4 3 Y86044 1.5P Y86045 4P Roll Taps 3/4-16UNF GH3 4.25 2.000 0.59 0.422 0.687 4 3 Y86046 1.5P Simple Inspection Tools Pipe Taps Thread Mills Dies Center Drills Centering Tools ANSI HT-14 265