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 ① Spiral Fluted Tap Series for blind hole Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk ANSI ① VUSP CH Z-PRO Coated Spiral Fluted Taps with Coolant Through Hole ② Specification ■Durability is improved by premium powder HSS and special coating. ■Chip ejection efficiency is improved and cutting Coating <2D resistance is reduced by the unique cutting edgeshape, achieving a good internal thread and long tool life. ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels Alloy steels Stainless steels 低炭素鋼 中炭素鋼 高炭素鋼 合金鋼 ステンレス鋼 10〜20 10〜25 10〜25 10〜20 5〜10 ④ (m/min) (m/min) (m/min) (m/min) (m/min) TYPE:1 TYPE:2 Coolant hole size Coolant hole size ⑤ ⑥ Segment:1DSize Class Code Chamfer L(inch)ℓ(inch) ℓn(inch) ℓs(inch) Ds(inch) K(inch) ℓk(inch) No. offlutesCoolant hole size(inch)TYPE For Unified Threads 5/16-18UNC GH5 5201103071 2.5P 3.543 0.472 1.378 1.831 0.318 0.238 0.375 3 0.039 1 3/8-16UNC GH5 5201103082 2.5P 3.937 0.512 1.535 2.028 0.381 0.286 0.437 3 0.059 1 ⑦ 1/2-13UNC GH5 5201103111 2.5P 4.331 0.591 - 2.205 0.367 0.275 0.437 3 0.079 2 ⑧ ⑨ ⑩ ⑪ ANSI ①-21 ※ This product is different from JIS products in shape and dimensions, please be careful when using.