h stock standard, ) check stock EU, f check stock JP, m stock exhaustion EG(STI) UNC TCTR Ø Hole Ø(tolerance)(mm)(mm)CodeTHCHT(chamfer)LF(inch)THL(inch) LU(inch) LS DCON K(inch)(inch)(inch)LK(inch)NOFTypeStockIntro ANSI GH1 2.35 2.4 PUUN2E1NEB 5P 2.205 0.354 0.709 1.28 0.14 0.11 0.187 2 005 f STI No.2-56UNC GH2 2.35 2.4 PUUN2E2NEB 5P 2.205 0.354 0.709 1.28 0.14 0.11 0.187 2 005 f SP GH1 3.1 3.13 PUUN4H1NEB 5P 2.48 0.512 0.827 1.496 0.17 0.131 0.25 2 005 f STI No.4-40UNC GH2 3.1 3.13 PUUN4H2NEB 5P 2.48 0.512 0.827 1.496 0.17 0.131 0.25 2 005 f GH1 3.8 3.83 PUUN6J1NEB 5P 2.756 0.551 0.945 1.654 0.19 0.131 0.25 2 005 f STI No.6-32UNC GH2 3.8 3.83 PUUN6J2NEB 5P 2.756 0.551 0.945 1.654 0.19 0.131 0.25 2 005 f SL GH1 4.4 4.48 PUUN8J1NEB 5P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 2 005 f STI No.8-32UNC GH2 4.4 4.48 PUUN8J2NEB 5P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 2 005 f GH2 5.2 5.23 PUUNAM2NEB 5P 3.15 0.591 1.181 1.713 0.26 0.191 0.312 2 005 fSTI No.10-24UNCPO GH3 5.2 5.23 PUUNAM3NEB 5P 3.15 0.591 1.181 1.713 0.26 0.191 0.312 2 005 f GH2 6.8 6.81 PUU04N2NEB 5P 3.543 0.748 1.378 1.831 0.32 0.238 0.375 2 006 f STI 1/4-20UNC GH3 6.8 6.81 PUU04N3NEB 5P 3.543 0.748 1.378 1.831 0.32 0.238 0.375 2 006 f GH2 8.4 8.43 PUU05O2NEB 5P 3.937 0.906 1.535 2.067 0.38 0.286 0.437 2 006 f ST STI 5/16-18UNC GH3 8.4 8.43 PUU05O3NEB 5P 3.937 0.906 1.535 2.067 0.38 0.286 0.437 2 006 f GH3 10 10.06 PUU06P3NEB 5P 4.331 1.024 - 2.205 0.37 0.275 0.437 3 007 f STI 3/8-16UNC GH4 10 10.06 PUU06P4NEB 5P 4.331 1.024 - 2.205 0.37 0.275 0.437 3 007 f GH3 11.7 11.71 PUU07Q3NEB 5P 4.331 1.024 - 2.205 0.43 0.322 0.5 3 007 f ROLL STI 7/16-14UNC GH4 11.7 11.71 PUU07Q4NEB 5P 4.331 1.024 - 2.205 0.43 0.322 0.5 3 007 f GH3 13.2 13.33 PUU08R3NEB 5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 007 f STI 1/2-13UNC GH4 13.2 13.33 PUU08R4NEB 5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 007 f CARBIDE EG(STI) UNF TCTR Ø Hole Ø(tolerance)(mm)(mm)CodeTHCHT(chamfer)LF(inch)THL(inch) LU(inch) LS DCON K(inch)(inch)(inch)LK(inch)NOFTypeStock ANSI GH2 5.1 5.14 PUUNAJ2NEB 5P 3.15 0.591 1.181 1.713 0.26 0.191 0.312 2 005 f LONG STI No.10-32UNF GH3 5.1 5.14 PUUNAJ3NEB 5P 3.15 0.591 1.181 1.713 0.26 0.191 0.312 2 005 f GH2 6.6 6.68 PUU04K2NEB 5P 3.543 0.748 1.378 1.831 0.32 0.238 0.375 2 006 f STI 1/4-28UNF GH3 6.6 6.68 PUU04K3NEB 5P 3.543 0.748 1.378 1.831 0.32 0.238 0.375 2 006 f HAND GH2 8.3 8.31 PUU05M2NEB 5P 3.937 0.906 1.535 2.028 0.38 0.286 0.437 2 006 f TAPS STI 5/16-24UNF GH3 8.3 8.31 PUU05M3NEB 5P 3.937 0.906 1.535 2.028 0.38 0.286 0.437 2 006 f GH2 9.8 9.89 PUU06M2NEB 5P 3.937 0.906 - 2.008 0.32 0.242 0.406 3 007 f STI 3/8-24UNF GH3 9.8 9.89 PUU06M3NEB 5P 3.937 0.906 - 2.008 0.32 0.242 0.406 3 007 f EG (STI) GH3 11.5 11.53 PUU07N3NEB 5P 4.331 1.024 - 2.205 0.43 0.322 0.5 3 007 f STI 7/16-20UNF GH4 11.5 11.53 PUU07N4NEB 5P 4.331 1.024 - 2.205 0.43 0.322 0.5 3 007 f ANSI STI 1/2-20UNF GH3 13.1 13.12 PUU08N3NEB 5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 007 f SPECIALGH413.113.12PUU08N4NEB5P4.3311.024-2.2050.480.360.5623007fTHREADS,GAUGES THREAD MILLS DIES CENTER DRILLS Technical info The most suitable GH tap class to cut accurate 2B, 3B (UNJ) and 2B oversized internal threads tolerance, depends on application conditions and work-piece materials. Yamawa GH class system offers a wide range of alternative tap classes allowing each customer to select the most suitable one according to application requirement. 535 Check page 673 of Technical info for full details.