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 ③ Spiral Pointed Tap Series for through hole Overall Thread Thread + Neck Shank Size of Length oflengthlengthlengthdia.squaresquareLℓℓnDsKℓk ANSI ZELX NI PO Spiral Pointed Taps for Nickel Base Alloys ① Size Class Code Chamfer L (inch) ℓ(inch) ℓn(inch) Ds(inch) K(inch) ℓk(inch) No. offlutes TYPE1/2-13UNCGH5Y855514.5P3.3750.984-0.3670.2750.43734 1/2-13UNC GH7 Y85581 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 1/2-20UNF GH3 Y85522 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 1/2-20UNF GH5 Y85552 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 ② 1/2-20UNF GH7 Y85582 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 5/8-11UNC GH3 Y85525 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 5/8-11UNC GH5 Y85555 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 5/8-11UNC GH7 Y85585 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 5/8-18UNF GH3 Y85526 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 ③ 5/8-18UNF GH5 Y85556 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 5/8-18UNF GH7 Y85586 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 3/4-10UNC GH3 Y85527 4.5P 4.25 1.201 - 0.59 0.442 0.687 3 4 3/4-10UNC GH5 Y85557 4.5P 4.25 1.201 - 0.59 0.442 0.687 3 4 3/4-16UNF GH3 Y85528 4.5P 4.25 1.201 - 0.59 0.442 0.687 3 4 ④ 3/4-16UNF GH5 Y85558 4.5P 4.25 1.201 - 0.59 0.442 0.687 3 4 ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ANSI ③-89 ※ This product is different from JIS products in shape and dimensions, please be careful when using.