Hand Tap Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk HT Hand Taps Spiral Fluted Taps (for blind hole) Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type (inch) (inch) (inch) (inch) (inch) (mm) (mm) flutes TSU14Q4NEB5 5P GH4 TSU14Q4NEBA 1.5P 7/8-14UNF 5.512 1.299 - 2.795 0.697 0.523 0.75 4 4 TSU14Q6NEB5 5P Spiral Fluted Taps (for through hole) GH6 TSU14Q6NEBA 1.5P TSU16X4NEB5 5P GH4 TSU16X4NEBA 1.5P TSU16X5NEB5 5P GH5 Spiral Pointed Taps (for through hole) TSU16X5NEBA 1.5P 1-8UNC 6.299 1.457 - 3.228 0.8 0.6 0.812 4 4 TSU16X6NEB5 5P GH6 TSU16X6NEBA 1.5P TSU16X7NEB5 5P GH7 TSU16X7NEBA 1.5P Hand Taps TSU16S4NEB5 5P GH4 TSU16S4NEBA 1.5P TSU16S5NEB5 5P 1-12UNF GH5 6.299 1.457 - 3.228 0.8 0.6 0.812 4 4 TSU16S5NEBA 1.5P Cemented Carbide Taps TSU16S6NEB5 5P GH6 TSU16S6NEBA 1.5P TSU18Y6NEB5 5P GH6 TSU18Y6NEBA 1.5P 1 1/8-7UNC 7.087 1.732 - 3.622 0.896 0.672 0.875 4 4 Roll Taps TSU18Y7NEB5 5P GH7 TSU18Y7NEBA 1.5P TSU18S5NEB5 5P GH5 TSU18S5NEBA 1.5P 1 1/8-12UNF 7.087 1.732 - 3.622 0.896 0.672 0.875 4 4 TSU18S6NEB5 5P Pipe Taps Simple Inspection Tools GH6 TSU18S6NEBA 1.5P TSU20Y6NEB5 5P GH6 TSU20Y6NEBA 1.5P 1 1/4-7UNC 7.087 1.929 - 3.622 1.021 0.766 1 4 4 TSU20Y8NEB5 5P GH8 TSU20Y8NEBA 1.5P TSU20S5NEB5 5P GH5 TSU20S5NEBA 1.5P 1 1/4-12UNF 7.087 1.929 - 3.622 1.021 0.766 1 6 4 TSU20S6NEB5 5P GH6 Thread Mills TSU20S6NEBA 1.5P TSU22Z6NEB5 5P GH6 TSU22Z6NEBA 1.5P 1 3/8-6UNC 7.874 2.165 - 4.016 1.108 0.831 1.062 4 4 TSU22Z8NEB5 5P GH8 Dies TSU22Z8NEBA 1.5P TSU22S5NEB5 5P GH5 TSU22S5NEBA 1.5P 1 3/8-12UNF 7.874 2.165 - 4.016 1.108 0.831 1.062 6 4 TSU22S6NEB5 5P GH6 TSU22S6NEBA 1.5P Center Drills TSU24Z6NEB5 5P GH6 TSU24Z6NEBA 1.5P 1 1/2-6UNC 7.874 2.323 - 4.016 1.233 0.925 1.125 4 4 TSU24Z8NEB5 5P GH8 TSU24Z8NEBA 1.5P Centering Tools TSU24S5NEB5 5P GH5 TSU24S5NEBA 1.5P 1 1/2-12UNF 7.874 2.323 - 4.016 1.233 0.925 1.125 6 4 TSU24S7NEB5 5P GH7 TSU24S7NEBA 1.5P ANSI HT-7 258