Overall length L Chamfer + full thread ℓt Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk ① SP Spiral Fluted Taps DIN L ℓt ℓ ℓn ℓs Ds K ℓk No. of TYPE Size Class Code Chamfer Spiral Fluted Taps (for blind hole) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes ① 1 3/8-6UNC 2B SGU22ZXNEB 2.5P 200 - 40 - 102 28 22 25 4 6 1 3/8-12UNF 2B SMU22SXNEB 2.5P 170 - 20 - 87 28 20 23 4 5 1 1/2-6UNC 2B SGU24ZXNEB 2.5P 200 - 40 - 102 32 24 27 4 6 1 1/2-12UNF 2B SMU24SXNEB 2.5P 170 - 20 - 87 32 24 27 4 5 Spiral Fluted Taps (for through hole) 1 3/4-5UNC 2B SGU280XNEB 2.5P 220 - 45 - 112 36 29 32 4 6 ② 1 3/4-12UN 2B SMU28SXNEB 2.5P 180 - 20 - 92 36 29 32 4 5 For G Threads G 1/16-28 - SVG0010NEB 2.5P 90 - 12 - 46 6 4.9 8 3 7 G 1/8-28 - SVG0020NEB 2.5P 90 - 12 - 46 7 5.5 8 3 7 Spiral Pointed Taps (for through hole) ③ G 1/4-19 - SVG0040NEB 2.5P 100 - 14 - 51 11 9 12 3 7 G 3/8-19 - SVG0060NEB 2.5P 100 - 14 - 51 12 9 12 3 7 G 1/2-14 - SVG0080NEB 2.5P 125 - 18 - 64 16 12 15 4 7 G 3/4-14 - SVG0120NEB 2.5P 140 - 20 - 71 20 16 19 4 7 G 7/8-14 Hand Taps - SVG0140NEB 2.5P 150 - 20 - 77 22 18 21 4 7 ④ G 1-11 - SVG0160NEB 2.5P 160 - 20 - 82 25 20 23 4 7 G 1 1/8-11 - SVG0180NEB 2.5P 170 - 20 - 87 28 22 25 4 7 G 1 1/4-11 - SVG0200NEB 2.5P 170 - 20 - 87 32 24 27 4 7 G 1 1/2-11 - SVG0240NEB 2.5P 190 - 25 - 97 36 29 32 4 7 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 DIN ※ This product is different from JIS products in shape and dimensions, please be careful when using. ①-54