Overall Thread Shank Size of Length of length length dia. square square L ℓ Ds K ℓk TYPE:1 YAMAWA (for blind hole) Spiral Fluted Taps TYPE:2 YAMAWA TYPE:3 DIN376 (for through hole) Spiral Fluted Taps (for through hole) Spiral Pointed Taps No. of Hand Taps Size Class Code Chamfer L ℓ Ds K ℓk flutes Type Stock (mm) (mm) (mm) (mm) (mm) For Metric Threads Carbide Taps Cemented M3 × 0.5 ISO2X TD3.0GBCWA5 5P 56 11 3.5 2.7 6 4 1 ● M4 × 0.7 ISO2X TD4.0IBCWA5 5P 63 13 4.5 3.4 6 4 1 ● M5 × 0.8 ISO2X TD5.0KBCWA5 5P 70 16 6 4.9 8 4 1 ● M6 × 1 ISO2X TD6.0MBCWA5 5P 80 19 6 4.9 8 5 1 ● M8 × 1.25 ISO2X TD8.0NBCWA5 5P 90 22 8 6.2 9 5 2 ● Roll Taps M10 × 1.5 ISO2X TD010OBCWA5 5P 100 24 10 8 11 5 2 ● M12 × 1.75 ISO2X TG012PBCWA5 5P 110 29 9 7 10 5 3 ● Simple Inspection Tools Special Thread Taps Pipe Taps Thread Mills Dies Center Drills Centering Tools DIN CT-4 161