Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk TYPE:1 DIN371 TYPE:2 DIN371 (for blind hole) Spiral Fluted Taps TYPE:3 DIN376 TYPE:4 DIN374 (for through hole) Spiral Fluted Taps (for through hole) Spiral Pointed Taps Fluted Taps Straight Segment:1B Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads Carbide Taps Cemented M6 × 1 ISO2X TD6.0MBLPVA 1.5P 80 15 30 45 6 4.9 8 3 1 ● M8 × 1.25 ISO2X TD8.0NBLPVA 1.5P 90 19 35 47 8 6.2 9 4 2 ● M10 × 1.5 ISO2X TD010OBLPVA 1.5P 100 23 39 52 10 8 11 4 2 ● M10 × 1.25 ISO2X TM010NBLPVA 1.5P 100 23 - 51 7 5.5 8 4 4 ● Roll Taps M10 × 1 ISO2X TM010MBLPVA 1.5P 90 19 - 46 7 5.5 8 4 4 ● M12 × 1.75 ISO2X TG012PBLPVA 1.5P 110 26 - 56 9 7 10 4 3 ● M12 × 1.5 ISO2X TM012OBLPVA 1.5P 100 21 - 51 9 7 10 4 4 ● M12 × 1.25 ISO2X TM012NBLPVA 1.5P 100 21 - 51 9 7 10 4 4 ● Simple Inspection Tools Special Thread Taps Pipe Taps Thread Mills Dies Center Drills Centering Tools DIN HT-22 155