Обший каталог Yamawa 2016 - 2017 - страница 89

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Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk SP-BLF(Coating) (for blind hole) Spiral Fluted Taps Spiral Fluted Taps, Deep Hole Use, Coated Specification (for through hole) Spiral Fluted Taps The BLF is suitable for deep hole tapping and presents the E Coating following advantages thanks to its geometry with the truncated crests: 1. Elimination of chipping problems at the taps full thread portion. 2. Good chip ejection. 3. Reduction of tapping friction. Recommended Tapping Speeds depending on Materials 4. The internal threads are cut by the chamfer and the 1st full thread. The full thread portion follows the internal threads just cut, and (for through hole) Spiral Pointed Taps Free cutting and Carbon steel and Medium alloy steel and High alloy steel drives or rotates the tap forward based on the pitch of the threads. structural steel low alloy steel heat treated steel Since only half of threads are truncated, the BLF tap does not IS P IS P IS P IS P lose its guiding function, making sure that the tap is able to move 10〜20 10〜20 10〜20 10〜20 forward following the pitch of the threads. (m/min) (m/min) (m/min) (m/min) For icon explanation, refer to P.50 Hand Taps TYPE：1 DIN371 TYPE：2 DIN371 Carbide Taps Cemented TYPE：3 DIN376 TYPE：4 DIN376 Roll Taps Segment：1D Simple Inspection Tools Special Thread Taps Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock Pipe Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads M3 × 0.5 ISO2 96473.0TI 2.5P 56 9 18 34 3.5 2.7 6 3 1 ● M4 × 0.7 ISO2 96474.0TI 2.5P 63 13 21 38 4.5 3.4 6 3 1 ● M5 × 0.8 ISO2 96475.0TI 2.5P 70 14 25 39 6 4.9 8 3 1 ● Thread Mills M6 × 1 ISO2 96476.0TI 2.5P 80 15 30 45 6 4.9 8 3 1 ● M8 × 1.25 ISO2 96478.0TI 2.5P 90 19 35 47 8 6.2 9 3 2 ● M10 × 1.5 ISO2 9647010TI 2.5P 100 23 39 52 10 8 11 3 2 ● M12 × 1.75 ISO2 9747012TI 2.5P 110 26 - 56 9 7 10 3 3 ● M14 × 2 ISO2 9747014TI 2.5P 110 26 - 56 11 9 12 3 3 ● Dies M16 × 2 ISO2 9747016TI 2.5P 110 26 - 56 12 9 12 3 3 ● M18 × 2.5 ISO2 9747018TI 2.5P 125 33 - 64 14 11 14 4 3 ● M20 × 2.5 ISO2 9747020TI 2.5P 140 33 - 71 16 12 15 4 3 ● M22 × 2.5 ISO2 9747022TI 2.5P 140 33 - 71 18 14.5 17 4 3 ● Center Drills M24 × 3 ISO2 9747024TI 2.5P 160 37 - 82 18 14.5 17 4 4 ● Centering Tools DIN SP-34 85