Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk LA-HT (for blind hole) Spiral Fluted Taps Straight Fluted Taps for Die Cast Materials Specification (for through hole) Spiral Fluted Taps ■LA-HT is the oversized tap, and is suitable for the materials E tending to shrink, such as aluminum alloy diecastings (ADC) Nitride and zinc alloy diecastings (ZDC). Recommended Tapping Speeds depending on Materials (for through hole) Spiral Pointed Taps Aluminum alloy Aluminum alloy Si Si TYPE:1 DIN371 IS IS 5〜15 5〜15 (m/min) (m/min) For icon explanation, refer to P.50 Fluted Taps Straight TYPE:2 DIN371 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 M3 × 0.5 ISO2X TD3.0GBLEN5 5P 56 9 18 34 3.5 2.7 6 3 1 ● M4 × 0.7 ISO2X TD4.0IBLEN5 5P 63 13 21 38 4.5 3.4 6 3 1 ● M5 × 0.8 ISO2X TD5.0KBLEN5 5P 70 14 25 39 6 4.9 8 3 1 ● Pipe Taps M6 × 1 ISO2X TD6.0MBLEN5 5P 80 15 30 45 6 4.9 8 3 1 ● M8 × 1.25 ISO2X TD8.0NBLEN5 5P 90 19 35 47 8 6.2 9 3 2 ● M10 × 1.5 ISO2X TD010OBLEN5 5P 100 23 39 52 10 8 11 4 2 ● M12 × 1.75 ISO2X TG012PBLEN5 5P 110 26 - 56 9 7 10 4 3 ● Thread Mills M14 × 2 ISO2X TG014QBLEN5 5P 110 26 - 56 11 9 12 4 3 M16 × 2 ISO2X TG016QBLEN5 5P 110 26 - 56 12 9 12 4 3 Dies Center Drills Centering Tools DIN HT-20 153