Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools ANSI ⑦ Special Thread Taps / Simple Inspection Tools Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk ANSI ① PO OX STI Spiral Pointed Taps for Helical Coil Wire Screw Thread Inserts, Oxidized ② Specification ■Spiral pointed tap to cut internal threads for helical coil to enter. ③ Oxide Recommended Tapping Speed depending on Materials Low carbon steels Medium carbon steels 低炭素鋼 中炭素鋼 5〜10 5〜10 ④ (m/min) (m/min) TYPE:1 ⑤ ⑥ TYPE:2 TYPE:3 ⑦ Segment:1E Size Class Code Chamfer L(inch) ℓ(inch) ℓn(inch) ℓs(inch) Ds(inch) K(inch) ℓk(inch) No. offlutes TYPE ⑧ For Unified Threads No.2-56UNCGH1PUUN2E1NEX5P2.2050.3540.7091.28 0.141 0.11 0.187 2 1 No.2-56UNC GH2 PUUN2E2NEX 5P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 1 No.4-40UNC GH1 PUUN4H1NEX 5P 2.48 0.512 0.827 1.496 0.168 0.131 0.25 2 1 No.4-40UNC GH2 PUUN4H2NEX 5P 2.48 0.512 0.827 1.496 0.168 0.131 0.25 2 1 ⑨ No.6-32UNC GH1 PUUN6J1NEX 5P 2.756 0.551 0.945 1.654 0.194 0.131 0.25 2 1 No.6-32UNC GH2 PUUN6J2NEX 5P 2.756 0.551 0.945 1.654 0.194 0.131 0.25 2 1 No.8-32UNC GH1 PUUN8J1NEX 5P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 2 1 No.8-32UNC GH2 PUUN8J2NEX 5P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 2 1 No.10-24UNC GH2 PUUNAM2NEX 5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 2 1 ⑩ No.10-24UNC GH3 PUUNAM3NEX 5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 2 1 No.10-32UNF GH2 PUUNAJ2NEX 5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 2 1 No.10-32UNF GH3 PUUNAJ3NEX 5P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 2 1 1/4-20UNC GH2 PUU04N2NEX 5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 2 2 1/4-20UNC GH3 PUU04N3NEX 5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 2 2 ⑪ 1/4-28UNF GH2 PUU04K2NEX 5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 2 2 1/4-28UNF GH3 PUU04K3NEX 5P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 2 2 5/16-18UNC GH2 PUU05O2NEX 5P 3.937 0.906 1.535 2.067 0.381 0.286 0.437 2 2 ANSI ⑦-21 ※ This product is different from JIS products in shape and dimensions, please be careful when using.