① Spiral Fluted Tap Series for blind hole Overall length L Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk ANSI SP Spiral Fluted Taps 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.4-40UNC GH1 SSUN4H1NEB 2.5P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 2 No.4-40UNC GH2 SSUN4H2NEB 2.5P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 2 No.4-48UNF GH1 SSUN4F1NEB 2.5P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 2 No.4-48UNF GH2 SSUN4F2NEB 2.5P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 2 Spiral Fluted Taps (for through hole) ② No.5-40UNC GH1 SSUN5H1NEB 2.5P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 2 2 No.5-40UNC GH2 SSUN5H2NEB 2.5P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 2 2 No.5-44UNF GH1 SSUN5G1NEB 2.5P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 2 2 No.5-44UNF GH2 SSUN5G2NEB 2.5P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 2 2 No.6-32UNC Spiral Pointed Taps (for through hole) GH1 SSUN6J1NEB 2.5P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 3 2 ③ No.6-32UNC GH2 SSUN6J2NEB 2.5P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 3 2 No.6-32UNC GH3 SSUN6J3NEB 2.5P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 3 2 No.6-32UNC GH4 SSUN6J4NEB 2.5P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 3 2 No.6-40UNF GH1 SSUN6H1NEB 2.5P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 3 2 Hand Taps No.6-40UNF GH2 SSUN6H2NEB 2.5P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 3 2 ④ No.8-32UNC GH2 SSUN8J2NEB 2.5P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 3 2 No.8-32UNC GH3 SSUN8J3NEB 2.5P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 3 2 No.8-36UNF GH2 SSUN8I2NEB 2.5P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 3 2 No.8-36UNF GH3 SSUN8I3NEB 2.5P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 3 2 Cemented Carbide Taps ⑤ No.10-24UNC GH2 SSUNAM2NEB 2.5P 2.756 0.551 0.945 1.654 0.194 0.152 0.25 3 2 No.10-24UNC GH3 SSUNAM3NEB 2.5P 2.756 0.551 0.945 1.654 0.194 0.152 0.25 3 2 No.10-32UNF GH2 SSUNAJ2NEB 2.5P 2.756 0.551 0.945 1.654 0.194 0.152 0.25 3 2 No.10-32UNF GH3 SSUNAJ3NEB 2.5P 2.756 0.551 0.945 1.654 0.194 0.152 0.25 3 2 Roll Taps No.12-24UNC GH2 SSUNCM2NEB 2.5P 3.15 0.591 0.984 1.953 0.22 0.165 0.281 3 2 ⑥ No.12-24UNC GH3 SSUNCM3NEB 2.5P 3.15 0.591 0.984 1.953 0.22 0.165 0.281 3 2 No.12-28UNF GH2 SSUNCK2NEB 2.5P 3.15 0.591 0.984 1.953 0.22 0.165 0.281 3 2 No.12-28UNF GH3 SSUNCK3NEB 2.5P 3.15 0.591 0.984 1.953 0.22 0.165 0.281 3 2 1/4-20UNC GH2 SSU04N2NEB 2.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 Special Thread Taps Simple Inspection Tools 1/4-20UNC GH3 SSU04N3NEB 2.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 ⑦ 1/4-20UNC GH5 SSU04N5NEB 2.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 1/4-20UNC GH11 SSU04N-EEB 2.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 1/4-28UNF GH2 SSU04K2NEB 2.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 1/4-28UNF GH3 SSU04K3NEB 2.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 Pipe Taps ⑧ 1/4-28UNF GH4 SSU04K4NEB 2.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 1/4-28UNF GH11 SSU04K-EEB 2.5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 2 5/16-18UNC GH2 SSU05O2NEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 5/16-18UNC GH3 SSU05O3NEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 Thread Mills Premium Thread Mills 5/16-18UNC GH5 SSU05O5NEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 ⑨ 5/16-18UNC GH11 SSU05O-EEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 5/16-24UNF GH2 SSU05M2NEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 5/16-24UNF GH3 SSU05M3NEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 5/16-24UNF GH4 SSU05M4NEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 Dies 5/16-24UNF ⑩ GH5 SSU05M5NEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 5/16-24UNF GH11 SSU05M-EEB 2.5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 3 3/8-16UNC GH3 SSU06P3NEB 2.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 3/8-16UNC GH4 SSU06P4NEB 2.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 3/8-16UNC GH5 SSU06P5NEB 2.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 Center Drills Centering Tools ⑪ 3/8-16UNC GH11 SSU06P-EEB 2.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 3/8-24UNF GH2 SSU06M2NEB 2.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 3/8-24UNF GH3 SSU06M3NEB 2.5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 3 3 ANSI ①-47 ※ This product is different from JIS products in shape and dimensions, please be careful when using.