Hand Tap 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 TSUNCM2NEB5 5P GH2 TSUNCM2NEBA 1.5P No.12-24UNC 3.15 0.591 0.984 1.929 0.220 0.165 0.281 4 2 TSUNCM3NEB5 5P Spiral Fluted Taps (for through hole) GH3 TSUNCM3NEBA 1.5P TSUNCK2NEB5 5P GH2 TSUNCK2NEBA 1.5P No.12-28UNF 3.15 0.591 0.984 1.929 0.220 0.165 0.281 4 2 TSUNCK3NEB5 5P GH3 Spiral Pointed Taps (for through hole) TSUNCK3NEBA 1.5P TSU04N3NEB5 5P GH3 TSU04N3NEBA 1.5P TSU04N4NEB5 5P 1/4-20UNC GH4 3.15 0.591 1.181 1.713 0.255 0.191 0.312 4 2 TSU04N4NEBA 1.5P Hand Taps TSU04N5NEB5 5P GH5 TSU04N5NEBA 1.5P TSU04K2NEB5 5P GH2 TSU04K2NEBA 1.5P Cemented Carbide Taps TSU04K3NEB5 5P 1/4-28UNF GH3 3.15 0.591 1.181 1.713 0.255 0.191 0.312 4 2 TSU04K3NEBA 1.5P TSU04K4NEB5 5P GH4 TSU04K4NEBA 1.5P Roll Taps TSU05O3NEB5 5P GH3 TSU05O3NEBA 1.5P TSU05O4NEB5 5P 5/16-18UNC GH4 3.543 0.748 1.378 1.831 0.318 0.238 0.375 4 3 TSU05O4NEBA 1.5P TSU05O5NEB5 5P Pipe Taps Simple Inspection Tools GH5 TSU05O5NEBA 1.5P TSU05M3NEB5 5P GH3 TSU05M3NEBA 1.5P 5/16-24UNF 3.543 0.748 1.378 1.831 0.318 0.238 0.375 4 3 TSU05M4NEB5 5P GH4 TSU05M4NEBA 1.5P TSU06P3NEB5 5P GH3 TSU06P3NEBA 1.5P 3/8-16UNC 3.937 0.906 1.535 2.028 0.381 0.286 0.437 4 3 TSU06P5NEB5 5P GH5 Thread Mills TSU06P5NEBA 1.5P TSU06M3NEB5 5P GH3 TSU06M3NEBA 1.5P 3/8-24UNF 3.937 0.906 1.535 2.028 0.381 0.286 0.437 4 3 TSU06M4NEB5 5P GH4 Dies TSU06M4NEBA 1.5P TSU07Q4NEB5 5P GH4 TSU07Q4NEBA 1.5P 7/16-14UNC 3.937 0.906 - 2.008 0.323 0.242 0.406 4 4 TSU07Q5NEB5 5P GH5 TSU07Q5NEBA 1.5P Center Drills TSU07N3NEB5 5P GH3 TSU07N3NEBA 1.5P 7/16-20UNF 3.937 0.906 - 2.008 0.323 0.242 0.406 4 4 TSU07N4NEB5 5P GH4 TSU07N4NEBA 1.5P Centering Tools TSU08R3NEB5 5P GH3 TSU08R3NEBA 1.5P 1/2-13UNC 4.331 1.024 - 2.205 0.367 0.275 0.437 4 4 TSU08R4NEB5 5P GH4 TSU08R4NEBA 1.5P ANSI HT-5 256