Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk GG-HT-OH (for blind hole) Spiral Fluted Taps Straight Fluted Taps for Cast Irons with Internal Coolant Hole Specification (for through hole) Spiral Fluted Taps ■Suitable for hard and abrasive materials such as cast E irons. Considering comparatively quick wear, GG-HT-OH is Nitride properly oversized. Recommended Tapping Speeds depending on Materials (for through hole) Spiral Pointed Taps rey cast iron TYPE:1 DIN371 IS 5〜10 (m/min) For icon explanation, refer to P.50 Fluted Taps Straight TYPE:2 DIN374 TYPE:3 DIN376 Carbide Taps Cemented Roll Taps Segment:1B Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock Simple Inspection Tools Special Thread Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads M6 × 1 ISO2X TD6.0MBAFNC 2.5P 80 15 30 45 6 4.9 8 4 1 ● M8 × 1.25 ISO2X TD8.0NBAFNC 2.5P 90 19 35 47 8 6.2 9 4 1 ● M8 × 1 ISO2X TM8.0MBAFNC 2.5P 90 19 - 46 6 4.9 8 4 2 ● Pipe Taps M10 × 1.5 ISO2X TD010OBAFNC 2.5P 100 23 39 52 10 8 11 4 1 ● M10 × 1.25 ISO2X TM010NBAFNC 2.5P 100 23 - 51 7 5.5 8 4 2 ● M10 × 1 ISO2X TM010MBAFNC 2.5P 90 19 - 46 7 5.5 8 4 2 ● M12 × 1.75 ISO2X TG012PBAFNC 2.5P 110 26 - 56 9 7 10 4 3 ● Thread Mills M12 × 1.5 ISO2X TM012OBAFNC 2.5P 100 21 - 51 9 7 10 4 2 ● M12 × 1.25 ISO2X TM012NBAFNC 2.5P 100 21 - 51 9 7 10 4 2 ● M14 × 2 ISO2X TG014QBAFNC 2.5P 110 26 - 56 11 9 12 4 3 ● M14 × 1.5 ISO2X TM014OBAFNC 2.5P 100 21 - 51 11 9 12 4 2 ● M14 × 1 ISO2X TM014MBAFNC 2.5P 100 21 - 51 11 9 12 4 2 Dies M16 × 2 ISO2X TG016QBAFNC 2.5P 110 26 - 56 12 9 12 4 3 ● M16 × 1.5 ISO2X TM016OBAFNC 2.5P 100 21 - 51 12 9 12 4 2 ● M18 × 2.5 ISO2X TG018RBAFNC 2.5P 125 33 - 64 14 11 14 4 3 ● M18 × 1.5 ISO2X TM018OBAFNC 2.5P 110 24 - 56 14 11 14 4 2 ● Center Drills M20 × 2.5 ISO2X TG020RBAFNC 2.5P 140 33 - 71 16 12 15 4 3 ● M20 × 1.5 ISO2X TM020OBAFNC 2.5P 125 24 - 64 16 12 15 4 2 ● M22 × 1.5 ISO2X TM022OBAFNC 2.5P 125 24 - 64 18 14.5 17 4 2 Centering Tools DIN HT-18 151