Overall length L Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk ③ DIN L 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) flutes ① M10 × 1.25 ISO2 9830010NTI 5P 100 23 - 51 7 5.5 8 3 4 M10 × 1 ISO2 9830010MTI 5P 90 19 - 46 7 5.5 8 3 4 M12 × 1.75 ISO2 9730012TI 5P 110 26 - 56 9 7 10 3 4 M12 × 1.5 ISO2 9830012OTI 5P 100 21 - 51 9 7 10 3 4 Spiral Fluted Taps (for through hole) M12 × 1.25 ISO2 9830012NTI 5P 100 21 - 51 9 7 10 3 4 ② M14 × 2 ISO2 9730014TI 5P 110 26 - 56 11 9 12 3 4 M14 × 1.5 ISO2 9830014OTI 5P 100 21 - 51 11 9 12 3 4 M16 × 2 ISO2 9730016TI 5P 110 26 - 56 12 9 12 3 4 M16 × 1.5 ISO2 9830016OTI 5P 100 21 - 51 12 9 12 3 4 Spiral Pointed Taps (for through hole) M18 × 2.5 ③ ISO2 9730018TI 5P 125 33 - 64 14 11 14 3 4 M18 × 1.5 ISO2 9830018OTI 5P 110 24 - 56 14 11 14 3 4 M20 × 2.5 ISO2 9730020TI 5P 140 33 - 71 16 12 15 3 4 M20 × 1.5 ISO2 9830020OTI 5P 125 24 - 64 16 12 15 3 4 M22 × 2.5 ISO2 9730022TI 5P 140 33 - 71 18 14.5 17 3 4 Hand Taps ④ M24 × 3 ISO2 9730024TI 5P 160 37 - 82 18 14.5 17 3 4 For G Threads G 1/8-28 - 9930R02TI 5P 90 19 - 46 7 5.5 8 3 4 G 1/4-19 - 9930R04TI 5P 100 21 - 51 11 9 12 3 4 Cemented Carbide Taps G 3/8-19 - 9930R06TI 5P 100 21 - 51 12 9 12 3 4 ⑤ G 1/2-14 - 9930R08TI 5P 125 24 - 64 16 12 15 3 4 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. ③-50