Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk HT OX STI (for blind hole) Spiral Fluted Taps Hand Taps for Helical Coil Wire Screw Thread Inserts, Oxided Specification (for through hole) Spiral Fluted Taps ■ Hand tap cutting internal threads for helical coil to enter. E Oxide Recommended Tapping Speed depending on Materials (for through hole) Spiral Pointed Taps ow carbon steels 5〜10 TYPE:1e For icon explanation, refer to P.50 Hand Taps TYPE:e2 TYPE:3e Carbide Taps Cemented Roll Taps Segment:1A Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Simple Inspection Tools Pipe Taps (inch) (inch) (inch) (inch) (inch) (mm) (mm) flutes For Helical Coil Wire Screw Thread Inserts, for Unified Threads TUUN2E1NEX5 5P GH1 TUUN2E1NEXA 1.5P STI No.2-56UNC 2.205 0.354 0.709 1.28 0.141 0.11 0.187 3 1 TUUN2E2NEX5 5P GH2 TUUN2E2NEXA 1.5P TUUN4H1NEX5 5P GH1 TUUN4H1NEXA 1.5P STI No.4-40UNC 2.48 0.512 0.827 1.496 0.168 0.131 0.25 3 1 TUUN4H2NEX5 5P GH2 Thread Mills TUUN4H2NEXA 1.5P TUUN6J1NEX5 5P GH1 TUUN6J1NEXA 1.5P STI No.6-32UNC 2.756 0.551 0.945 1.654 0.194 0.131 0.25 3 1 TUUN6J2NEX5 5P GH2 Dies TUUN6J2NEXA 1.5P TUUN8J1NEX5 5P GH1 TUUN8J1NEXA 1.5P STI No.8-32UNC 3.15 0.591 0.984 1.929 0.22 0.165 0.281 3 1 TUUN8J2NEX5 5P GH2 TUUN8J2NEXA 1.5P Center Drills TUUNAM2NEX5 5P GH2 TUUNAM2NEXA 1.5P STI No.10-24UNC 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 1 TUUNAM3NEX5 5P GH3 TUUNAM3NEXA 1.5P TUUNAJ2NEX5 5P Centering Tools GH2 TUUNAJ2NEXA 1.5P STI No.10-32UNF 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 1 TUUNAJ3NEX5 5P GH3 TUUNAJ3NEXA 1.5P ANSI HT-18 269