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 ANSI ④ Hand Tap Series Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk ANSI ① IHT Hand Taps for General Purpose ② Specification ■Suitable for low speed tapping of steels. <2D For manual use and drilling machine use. ③ Oxide Recommended Tapping Speed depending on Materials Low carbon steels Medium carbon steels 低炭素鋼 中炭素鋼 〜5 〜5 ④ (m/min) (m/min) TYPE:1 ⑤ TYPE:2 TYPE:3 ⑥ ⑦ Segment:1A Size Class Code Chamfer L(inch) ℓ(inch) ℓn(inch) ℓs(inch) Ds(inch) K(inch) ℓk(inch) No. offlutesTYPE For Unified Threads ⑧ No.6-32UNC - IAUN6JXHEX5 5P 2 0.374 0.669 1.201 0.141 0.11 0.187 3 1 No.6-32UNC - IAUN6JXHEX2 2P 2 0.374 0.669 1.201 0.141 0.11 0.187 3 1 No.8-32UNC - IAUN8JXHEX5 5P 2.125 0.374 0.866 1.339 0.168 0.131 0.25 3 1 No.8-32UNC - IAUN8JXHEX2 2P 2.125 0.374 0.866 1.339 0.168 0.131 0.25 3 1 No.10-24UNC - IAUNAMXHEX5 5P 2.375 0.512 0.866 1.339 0.194 0.152 0.25 3 1 ⑨ No.10-24UNC - IAUNAMXHEX2 2P 2.375 0.512 0.866 1.339 0.194 0.152 0.25 3 1 1/4-20UNC - IAU04NXHEX5 5P 2.5 0.591 1.024 1.22 0.255 0.191 0.312 3 2 1/4-20UNC - IAU04NXHEX2 2P 2.5 0.591 1.024 1.22 0.255 0.191 0.312 3 2 5/16-18UNC - IAU05OXHEX5 5P 2.718 0.669 1.004 1.378 0.318 0.238 0.375 3 3 ⑩ 5/16-18UNC - IAU05OXHEX2 2P 2.718 0.669 1.004 1.378 0.318 0.238 0.375 3 33/8-16UNC-IAU06PXHEX55P2.9370.7481.0591.4960.3810.2860.43733 3/8-16UNC - IAU06PXHEX2 2P 2.937 0.748 1.059 1.496 0.381 0.286 0.437 3 3 ⑪ ANSI ④-51 ※ This product is different from JIS products in shape and dimensions, please be careful when using.