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 Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk⑦ ANSI Size Class Code Chamfer L (inch) ℓ(inch) ℓn(inch) ℓs(inch) Ds(inch) K(inch) ℓk(inch) No. offlutes TYPE5/16-18UNCGH3PUU05O3NEX5P3.9370.9061.5352.0670.3810.2860.43722 ① 5/16-24UNF GH2 PUU05M2NEX 5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 2 2 5/16-24UNF GH3 PUU05M3NEX 5P 3.937 0.906 1.535 2.028 0.381 0.286 0.437 2 2 3/8-16UNC GH3 PUU06P3NEX 5P 4.331 1.024 - 2.205 0.367 0.275 0.437 3 3 3/8-16UNC GH4 PUU06P4NEX 5P 4.331 1.024 - 2.205 0.367 0.275 0.437 3 3 ② 3/8-24UNF GH2 PUU06M2NEX 5P 3.937 0.906 - 2.008 0.323 0.242 0.406 3 3 3/8-24UNF GH3 PUU06M3NEX 5P 3.937 0.906 - 2.008 0.323 0.242 0.406 3 3 7/16-14UNC GH3 PUU07Q3NEX 5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 3 7/16-14UNC GH4 PUU07Q4NEX 5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 3 7/16-20UNF GH3 PUU07N3NEX 5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 3 ③ 7/16-20UNF GH4 PUU07N4NEX 5P 4.331 1.024 - 2.205 0.429 0.322 0.5 3 3 1/2-13UNC GH3 PUU08R3NEX 5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 3 1/2-13UNC GH4 PUU08R4NEX 5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 3 1/2-20UNF GH3 PUU08N3NEX 5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 3 1/2-20UNF GH4 PUU08N4NEX 5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 3 ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ⑦-22