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 Hand Tap Series Overall Thread Shank Size of Length oflengthlengthdia.squaresquareLℓDsKℓk④ ANSI HT-CI ① Hand Taps for Cast Irons ② Specification ■Suitable for hard and abrasive materials <2D such as cast irons. Nitride ③ Recommended Tapping Speed depending on Materials Cast irons Ductile cast irons 鋳鉄 強靱鋳鉄 5〜10 5〜10 (m/min) (m/min) ④ TYPE:1 ⑤ TYPE:2 TYPE:3 ⑥ ⑦ Segment:1A Size Class Code Chamfer L(inch) ℓ(inch) Ds(inch) K(inch) ℓk(inch) No. offlutes TYPE For Unified Threads1/4-20UNCGH3Y860014P2.510.2550.191 0.312 4 1 ⑧ 1/4-20UNC GH3 Y86002 1.5P 2.5 1 0.255 0.191 0.312 4 1 1/4-20UNC GH5 Y86003 4P 2.5 1 0.255 0.191 0.312 4 1 1/4-20UNC GH5 Y86004 1.5P 2.5 1 0.255 0.191 0.312 4 1 1/4-28UNF GH3 Y86005 4P 2.5 1 0.255 0.191 0.312 4 1 ⑨ 1/4-28UNF GH3 Y86006 1.5P 2.5 1 0.255 0.191 0.312 4 1 5/16-18UNC GH3 Y86007 4P 2.718 1.125 0.318 0.238 0.375 4 2 5/16-18UNC GH3 Y86008 1.5P 2.718 1.125 0.318 0.238 0.375 4 2 5/16-18UNC GH5 Y86009 4P 2.718 1.125 0.318 0.238 0.375 4 2 5/16-18UNC GH5 Y86010 1.5P 2.718 1.125 0.318 0.238 0.375 4 2 ⑩ 5/16-24UNF GH3 Y86011 4P 2.718 1.125 0.318 0.238 0.375 4 2 5/16-24UNF GH3 Y86012 1.5P 2.718 1.125 0.318 0.238 0.375 4 2 3/8-16UNC GH3 Y86013 4P 2.937 1.25 0.381 0.286 0.437 4 2 3/8-16UNC GH3 Y86014 1.5P 2.937 1.25 0.381 0.286 0.437 4 2 3/8-16UNC GH5 Y86015 4P 2.937 1.25 0.381 0.286 0.437 4 2 ⑪ 3/8-16UNC GH5 Y86016 1.5P 2.937 1.25 0.381 0.286 0.437 4 2 3/8-24UNF GH3 Y86017 4P 2.937 1.25 0.381 0.286 0.437 4 2 ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ④-94