
② Spiral Fluted Tap Series for through hole Overall length L Thread length ℓ Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk DIN F-SL Spiral Fluted Taps (for blind hole) ① DIN Spiral Fluted Taps for High Speed Tapping, Through Hole Use(with LH Spiral Flutes) Spiral Fluted Taps (for through hole) ② Specification ■F-SL, spiral fluted tap, through hole use (with Coating LH spiral flutes) is applicable for such high speed tapping as 15m/min to 25m/min. Under Spiral Pointed Taps (for through hole) low tapping speed, chip shape and chip ③ ejection may become poor and cause tapping Recommended Tapping Speeds depending on Materials troubles. Low carbon steels Medium carbon steels 低炭素鋼 中炭素鋼 15 25 15 25 〜 〜 Hand Taps ( m / min ) ( m / min ) ④ TYPE:1 Cemented Carbide Taps ⑤ TYPE:2 TYPE:3 Roll Taps ⑥ Special Thread Taps Simple Inspection Tools ⑦ Segment:1S L ℓ ℓn ℓs Ds K ℓk No. of TYPE Size Class Code Chamfer (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes Pipe Taps For Metric Threads ⑧ M3 × 0.5 ISO2X LD3.0GBNEV 5P 56 9 18 34 3.5 2.7 6 3 1 M4 × 0.7 ISO2X LD4.0IBNEV 5P 63 13 21 38 4.5 3.4 6 3 1 M5 × 0.8 ISO2X LD5.0KBNEV 5P 70 14 25 39 6 4.9 8 3 1 M6 × 1 ISO2X LY6.0MBNEV 5P 80 15 30 45 6 4.9 8 3 2 Thread Mills Premium Thread Mills M8 × 1.25 ⑨ ISO2X LY8.0NBNEV 5P 90 19 35 48 8 6.2 9 3 2 M10 × 1.5 ISO2X LY010OBNEV 5P 100 23 39 53 10 8 11 3 2 M10 × 1.25 ISO2X LY010NBNEV 5P 100 19 39 53 10 8 11 3 2 M12 × 1.75 ISO2X LY012PBNEV 5P 110 26 45 56 12 9 12 3 2 M12 × 1.75 Dies ISO2X LG012PBNEV 5P 110 26 - 56 9 7 10 3 3 ⑩ M12 × 1.5 ISO2X LY012OBNEV 5P 110 23 45 56 12 9 12 3 2 M12 × 1.5 ISO2X LM012OBNEV 5P 100 21 - 51 9 7 10 3 3 M12 × 1.25 ISO2X LY012NBNEV 5P 110 19 45 56 12 9 12 3 2 M12 × 1.25 ISO2X LM012NBNEV 5P 100 21 - 51 9 7 10 3 3 Center Drills Centering Tools ⑪ DIN ②-29 ※ This product is different from JIS products in shape and dimensions, please be careful when using.