
① Spiral Fluted Tap Series for blind hole Overall length L Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk ANSI SP Spiral Fluted Taps L ℓ ℓn ℓs Ds K ℓk No. of TYPE Size Class Code Chamfer Spiral Fluted Taps (for blind hole) (inch) (inch) (inch) (inch) (inch) (inch) (inch) flutes ① 1 -12UNF GH6 SSU16S6NEB 2.5P 6.299 1.457 - 3.228 0.8 0.6 0.812 4 5 1 1/8-7UNC GH4 SSU18Y4NEB 2.5P 7.087 1.732 - 3.622 0.896 0.672 0.875 4 5 1 1/8-7UNC GH6 SSU18Y6NEB 2.5P 7.087 1.732 - 3.622 0.896 0.672 0.875 4 5 1 1/8-12UNF GH4 SSU18S4NEB 2.5P 7.087 1.732 - 3.622 0.896 0.672 0.875 4 5 Spiral Fluted Taps (for through hole) ② 1 1/8-12UNF GH5 SSU18S5NEB 2.5P 7.087 1.732 - 3.622 0.896 0.672 0.875 4 5 1 1/4-7UNC GH4 SSU20Y4NEB 2.5P 7.087 1.929 - 3.622 1.021 0.766 1 4 5 1 1/4-7UNC GH6 SSU20Y6NEB 2.5P 7.087 1.929 - 3.622 1.021 0.766 1 4 5 1 1/4-12UNF GH4 SSU20S4NEB 2.5P 7.087 1.929 - 3.622 1.021 0.766 1 4 5 1 1/4-12UNF GH5 SSU20S5NEB 2.5P 7.087 1.929 - 3.622 1.021 0.766 1 4 5 Spiral Pointed Taps (for through hole) ③ 1 3/8-6UNC GH5 SSU22Z5NEB 2.5P 7.874 2.165 - 4.016 1.108 0.831 1.062 4 5 1 3/8-6UNC GH6 SSU22Z6NEB 2.5P 7.874 2.165 - 4.016 1.108 0.831 1.062 4 5 1 3/8-12UNF GH4 SSU22S4NEB 2.5P 7.874 2.165 - 4.016 1.108 0.831 1.062 4 5 1 3/8-12UNF GH5 SSU22S5NEB 2.5P 7.874 2.165 - 4.016 1.108 0.831 1.062 4 5 Hand Taps 1 1/2-6UNC GH5 SSU24Z5NEB 2.5P 7.874 2.323 - 4.016 1.233 0.925 1.125 4 5 ④ 1 1/2-6UNC GH6 SSU24Z6NEB 2.5P 7.874 2.323 - 4.016 1.233 0.925 1.125 4 5 1 1/2-12UNF GH4 SSU24S4NEB 2.5P 7.874 2.323 - 4.016 1.233 0.925 1.125 4 5 1 1/2-12UNF GH5 SSU24S5NEB 2.5P 7.874 2.323 - 4.016 1.233 0.925 1.125 4 5 Cemented Carbide Taps ⑤ Roll Taps ⑥ Special Thread Taps Simple Inspection Tools ⑦ Pipe Taps ⑧ Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ ANSI ①-49 ※ This product is different from JIS products in shape and dimensions, please be careful when using.