DIN Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools Spiral Fluted Tap Series for blind hole Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk① DIN SP-BLF ① Spiral Fluted Taps, Deep Hole Use(Coated) ② Specification ■The SP-BLF has a special thread portion to Coating prevent chipping caused by the chip jamming. It is a spiral flute tap for tapping blind holes. ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels Alloy steels 低炭素鋼 中炭素鋼 高炭素鋼 合金鋼 10〜20 10〜20 10〜20 10〜20 (m/min) (m/min) (m/min) (m/min) ④ TYPE:1 TYPE:2 ⑤ TYPE:3 TYPE:4 ⑥ ⑦ Segment:1D Size Class Code Chamfer L(mm) ℓ(mm) ℓn(mm) ℓs(mm) Ds(mm) K(mm) ℓk(mm) No. offlutesTYPE For Metric Threads ⑧ 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 M6 × 1 ISO2 96476.0TI 2.5P 80 15 30 45 6 4.9 8 3 1M8 × 1.25ISO296478.0TI2.5P9019354786.2932 ⑨ M10 × 1.5 ISO2 9647010TI 2.5P 100 23 39 52.5 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 M16 × 2 ISO2 9747016TI 2.5P 110 26 - 56 12 9 12 3 3 ⑩ 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 M24 × 3 ISO2 9747024TI 2.5P 160 37 - 82 18 14.5 17 4 4 ⑪ DIN ※ This product is different from JIS products in shape and dimensions, please be careful when using. ①-126