ANSI 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 Special Thread Taps / Simple Inspection Tools Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk⑦ ANSI SP STI ① Spiral Fluted Taps for Helical Coil Wire Screw Thread Inserts ② Specification ■Spiral pointed tap to cut internal threads for helical coil to enter. ③ Recommended Tapping Speed depending on Materials Brass Brass castings Bronze Wrought aluminum Aluminum alloy castings Magnesium alloy die castings Zinc alloy castings 黄銅 黄銅鋳物 青銅 アルミ圧延材 アルミ合金鋳物 マグネシウム合金鋳物 亜鉛合金鋳物 5〜15 5〜15 5〜15 5〜15 5〜15 5〜15 5〜15 (m/min) (m/min) (m/min) (m/min) (m/min) (m/min) (m/min) ④ TYPE:1 ⑤ ⑥ TYPE:2 TYPE:3 ⑦ Segment:1C 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.2-56UNC GH1 SUUN2E1NEB 2P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 1 No.2-56UNC GH2 SUUN2E2NEB 2P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 2 1 No.4-40UNC GH1 SUUN4H1NEB 2P 2.48 0.512 0.827 1.496 0.168 0.131 0.25 2 1No.4-40UNCGH2SUUN4H2NEB2P2.480.5120.8271.4960.1680.1310.2521 ⑨ No.6-32UNC GH1 SUUN6J1NEB 2P 2.756 0.551 0.945 1.654 0.194 0.131 0.25 3 1 No.6-32UNC GH2 SUUN6J2NEB 2P 2.756 0.551 0.945 1.654 0.194 0.131 0.25 3 1 No.8-32UNC GH1 SUUN8J1NEB 2P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 3 1 No.8-32UNC GH2 SUUN8J2NEB 2P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 3 1 ⑩ No.10-24UNC GH2 SUUNAM2NEB 2P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 1 No.10-24UNC GH3 SUUNAM3NEB 2P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 1 No.10-32UNF GH2 SUUNAJ2NEB 2P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 1 No.10-32UNF GH3 SUUNAJ3NEB 2P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 3 1 1/4-20UNC GH2 SUU04N2NEB 2P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 2 ⑪ 1/4-20UNC GH3 SUU04N3NEB 2P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 2 1/4-28UNF GH2 SUU04K2NEB 2P 3.543 0.748 1.378 1.831 0.318 0.238 0.375 3 2 ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ⑦-12