PO (for blind hole) Spiral Fluted Taps Spiral Pointed Taps Specification (for through hole) Spiral Fluted Taps E 1 1/8U ~ Recommended Tapping Speed depending on Materials (for through hole) Spiral Pointed Taps Medium carbon steels 5〜10 For icon explanation, refer to P.50 TYPE:1 TYPE:2 Hand Taps Carbide Taps Cemented TYPE:e3 TYPE:4e Roll Taps Segment:1E Simple Inspection Tools Pipe Taps Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type (inch) (inch) (inch) (inch) (inch) (inch) (inch) flutes For Unified Threads GH1 PSUN0B1NEB NO.0-80UNF 5P 1.772 0.236 - 1.161 0.141 0.11 0.187 2 1 GH2 PSUN0B2NEB GH1 PSUN1D1NEB NO.1-64UNC 5P 1.772 0.275 - 1.161 0.141 0.11 0.187 2 1 Thread Mills GH2 PSUN1D2NEB GH1 PSUN1C1NEB NO.1-72UNF 5P 1.772 0.275 - 1.161 0.141 0.11 0.187 2 1 GH2 PSUN1C2NEB GH1 PSUN2E1NEB NO.2-56UNC 5P 1.772 0.314 - 1.161 0.141 0.11 0.187 2 1 Dies GH2 PSUN2E2NEB GH1 PSUN2D1NEB NO.2-64UNF 5P 1.772 0.314 - 1.161 0.141 0.11 0.187 2 1 GH2 PSUN2D2NEB GH1 PSUN3F1NEB NO.3-48UNC 5P 2.205 0.354 0.669 1.28 0.141 0.11 0.187 2 2 GH2 PSUN3F2NEB Center Drills GH1 PSUN3E1NEB NO.3-56UNF 5P 2.205 0.354 0.669 1.28 0.141 0.11 0.187 2 2 GH2 PSUN3E2NEB GH2 PSUN4H2NEB No.4-40UNC 5P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 2 GH3 PSUN4H3NEB GH1 PSUN4F1NEB Centering Tools NO.4-48UNF 5P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 2 GH2 PSUN4F2NEB GH2 PSUN5H2NEB No.5-40UNC 5P 2.205 0.433 0.768 1.358 0.141 0.11 0.187 2 2 GH3 PSUN5H3NEB ANSI PO-2 229