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 HVSP Z-PRO Heavy Industry Spiral Fluted Tap for Large Parts Processing 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 2BX SSU16SYEEXCJ 2.5P 6.299 1.457 - 3.228 0.8 0.6 0.812 4 1 1 1/8-7UNC 2BX SSU18YYEEXCJ 2.5P 7.087 1.732 - 3.622 0.896 0.672 0.875 4 1 1 1/8-8UN 2BX SSU18XYEEXCJ 2.5P 7.087 1.732 - 3.622 0.896 0.672 0.875 4 1 1 1/8-12UNF 2BX SSU18SYEEXCJ 2.5P 7.087 1.732 - 3.622 0.896 0.672 0.875 4 1 Spiral Fluted Taps (for through hole) 1 1/4-7UNC 2BX SSU20YYEEXCJ 2.5P 7.087 1.929 - 3.622 1.021 0.766 1 4 1 ② 1 1/4-8UN 2BX SSU20XYEEXCJ 2.5P 7.087 1.929 - 3.622 1.021 0.766 1 4 1 1 1/4-12UNF 2BX SSU20SYEEXCJ 2.5P 7.087 1.929 - 3.622 1.021 0.766 1 4 1 1 3/8-6UNC 2BX SSU22ZYEEXCJ 2.5P 7.874 2.165 - 4.016 1.108 0.831 1.062 4 1 1 3/8-8UN 2BX SSU22XYEEXCJ 2.5P 7.874 2.165 - 4.016 1.108 0.831 1.062 4 1 Spiral Pointed Taps (for through hole) ③ 1 3/8-12UNF 2BX SSU22SYEEXCJ 2.5P 7.874 2.165 - 4.016 1.108 0.831 1.062 4 1 1 1/2-6UNC 2BX SSU24ZYEEXCJ 2.5P 7.874 2.323 - 4.016 1.233 0.925 1.125 4 1 1 1/2-8UN 2BX SSU24XYEEXCJ 2.5P 7.874 2.323 - 4.016 1.233 0.925 1.125 4 1 1 1/2-12UNF 2BX SSU24SYEEXCJ 2.5P 7.874 2.323 - 4.016 1.233 0.925 1.125 4 1 Hand Taps 1 3/4-5UNC 2BX SSU280YEEXCJ 2.5P 8.661 2.559 - 4.409 1.43 1.072 1.25 4 1 ④ 1 3/4-8UN 2BX SSU28XYEEXCJ 2.5P 8.661 2.559 - 4.409 1.43 1.072 1.25 4 1 1 3/4-12UN 2BX SSU28SYEEXCJ 2.5P 8.661 2.559 - 4.409 1.43 1.072 1.25 4 1 2 -4 1/2UNC 2BX SSU329YEEXCJ 2.5P 9.843 2.874 - 5.039 1.644 1.233 1.375 4 1 2 -8UN 2BX SSU32XYEEXCJ 2.5P 9.843 2.874 - 5.039 1.644 1.233 1.375 4 1 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 ①-27 ※ This product is different from JIS products in shape and dimensions, please be careful when using.