Overall length L Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk ③ PO OX Spiral Pointed Taps, Oxidized ANSI L ℓ ℓn ℓs Ds K ℓk No. of TYPE Size Class Code Chamfer Spiral Fluted Taps (for blind hole) (inch) (inch) (inch) (inch) (inch) (inch) (inch) flutes ① No.6-40UNF GH2 PSUN6H2NEX 5P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 2 2 No.6-40UNF GH3 PSUN6H3NEX 5P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 2 2 No.8-32UNC GH2 PSUN8J2NEX 5P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 2 2 No.8-32UNC GH3 PSUN8J3NEX 5P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 2 2 Spiral Fluted Taps (for through hole) No.8-36UNF GH2 PSUN8I2NEX 5P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 2 2 ② No.8-36UNF GH3 PSUN8I3NEX 5P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 2 2 No.10-24UNC GH2 PSUNAM2NEX 5P 2.756 0.551 0.945 1.654 0.194 0.152 0.25 2 2 No.10-24UNC GH3 PSUNAM3NEX 5P 2.756 0.551 0.945 1.654 0.194 0.152 0.25 2 2 No.10-32UNF GH2 PSUNAJ2NEX 5P 2.756 0.551 0.945 1.654 0.194 0.152 0.25 2 2 Spiral Pointed Taps (for through hole) ③ No.10-32UNF GH3 PSUNAJ3NEX 5P 2.756 0.551 0.945 1.654 0.194 0.152 0.25 2 2 No.12-24UNC GH2 PSUNCM2NEX 5P 3.15 0.591 0.984 1.953 0.22 0.165 0.281 2 2 No.12-24UNC GH3 PSUNCM3NEX 5P 3.15 0.591 0.984 1.953 0.22 0.165 0.281 2 2 No.12-28UNF GH2 PSUNCK2NEX 5P 3.15 0.591 0.984 1.953 0.22 0.165 0.281 2 2 No.12-28UNF Hand Taps GH3 PSUNCK3NEX 5P 3.15 0.591 0.984 1.953 0.22 0.165 0.281 2 2 ④ 1/4-20UNC GH3 PSU04N3NEX 4.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 1/4-20UNC GH4 PSU04N4NEX 4.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 1/4-20UNC GH5 PSU04N5NEX 4.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 1/4-28UNF GH2 PSU04K2NEX 4.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 Cemented Carbide Taps 1/4-28UNF GH3 PSU04K3NEX 4.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 ⑤ 1/4-28UNF GH4 PSU04K4NEX 4.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 5/16-18UNC GH3 PSU05O3NEX 4.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 5/16-18UNC GH4 PSU05O4NEX 4.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 5/16-18UNC GH5 PSU05O5NEX 4.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 Roll Taps 5/16-24UNF ⑥ GH3 PSU05M3NEX 4.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 5/16-24UNF GH4 PSU05M4NEX 4.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 3/8-16UNC GH3 PSU06P3NEX 4.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 3/8-16UNC GH5 PSU06P5NEX 4.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 3/8-24UNF GH3 PSU06M3NEX 4.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 Special Thread Taps Simple Inspection Tools ⑦ 3/8-24UNF GH4 PSU06M4NEX 4.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 7/16-14UNC GH4 PSU07Q4NEX 4.5P 3.937 0.906 - 2.008 0.323 0.242 0.406 3 5 7/16-14UNC GH5 PSU07Q5NEX 4.5P 3.937 0.906 - 2.008 0.323 0.242 0.406 3 5 7/16-20UNF GH3 PSU07N3NEX 4.5P 3.937 0.906 - 2.008 0.323 0.242 0.406 3 5 Pipe Taps 7/16-20UNF GH4 PSU07N4NEX 4.5P 3.937 0.906 - 2.008 0.323 0.242 0.406 3 5 ⑧ 7/16-20UNF GH5 PSU07N5NEX 4.5P 3.937 0.906 - 2.008 0.323 0.242 0.406 3 5 1/2-13UNC GH3 PSU08R3NEX 4.5P 4.331 1.024 - 2.205 0.367 0.275 0.437 3 5 1/2-13UNC GH4 PSU08R4NEX 4.5P 4.331 1.024 - 2.205 0.367 0.275 0.437 3 5 1/2-13UNC GH5 PSU08R5NEX 4.5P 4.331 1.024 - 2.205 0.367 0.275 0.437 3 5 Thread Mills Premium Thread Mills 1/2-20UNF GH3 PSU08N3NEX 4.5P 4.331 1.024 - 2.205 0.367 0.275 0.437 3 5 ⑨ 1/2-20UNF GH4 PSU08N4NEX 4.5P 4.331 1.024 - 2.205 0.367 0.275 0.437 3 5 1/2-20UNF GH5 PSU08N5NEX 4.5P 4.331 1.024 - 2.205 0.367 0.275 0.437 3 5 9/16-12UNC GH3 PSU09S3NEX 4.5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 5 9/16-12UNC GH4 PSU09S4NEX 4.5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 5 Dies ⑩ 9/16-12UNC GH5 PSU09S5NEX 4.5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 5 9/16-18UNF GH3 PSU09O3NEX 4.5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 5 9/16-18UNF GH4 PSU09O4NEX 4.5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 5 9/16-18UNF GH5 PSU09O5NEX 4.5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 5 5/8-11UNC GH3 PSU10U3NEX 4.5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 5 Center Drills Centering Tools ⑪ 5/8-11UNC GH4 PSU10U4NEX 4.5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 5 5/8-11UNC GH5 PSU10U5NEX 4.5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 5 5/8-11UNC GH6 PSU10U6NEX 4.5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 5 ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ③-40