Overall Chamfer+ Thread Thread+Neck Shank Shank Size of Length of length full thread length length length dia. square square L ℓt ℓ ℓn ℓs Ds K ℓk LO-SP (for blind hole) Spiral Fluted Taps Low Spiral Fluted Taps Specification (for through hole) Spiral Fluted Taps ■Spiral flutes with low helix can break down chips and can E eject them smoothly. Suitable for thermal refined high carbon steels and alloy tool steels. Effective in horizontal tapping. Recommended Tapping Speeds depending on Materials (for through hole) Spiral Pointed Taps Medium carbon steels High carbon steels 5〜10 5〜10 For icon explanation, refer to P.50 Hand Taps TYPE:1 TYPE:2 Carbide Taps Cemented Segment:1C Size Class Code Chamfer Helix angle of L ℓ ℓn ℓs Ds K ℓk No. of Type Stock Roll Taps spiral flutes (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads LSHMP3.0G8 8° M3 × 0.5 P1 LSHMP3.0G15 2.5P 15° 46 9 14 26 4 3.2 6 3 1 △ LSHMP3.0G20 20° Simple Inspection Tools Special Thread Taps LSHMQ4.0I8 8° M4 × 0.7 P2 LSHMQ4.0I15 2.5P 15° 52 11 17 29 5 4 7 3 1 △ LSHMQ4.0I20 20° LSHMQ5.0K8 8° Pipe Taps M5 × 0.8 P2 LSHMQ5.0K15 2.5P 15° 60 13 22 33 5.5 4.5 7 3 1 △ LSHMQ5.0K20 20° LSHMQ6.0M8 8° M6 × 1 P2 LSHMQ6.0M15 2.5P 15° 62 15 26 33 6 4.5 7 3 1 △ Thread Mills LSHMQ6.0M20 20° LSHMQ8.0N8 8° M8 × 1.25 P2 LSHMQ8.0N15 2.5P 15° 70 19 - 36 6.2 5 8 3 2 △ LSHMQ8.0N20 20° LSHMQ010O8 8° Dies M10 × 1.5 P2 LSHMQ010O15 2.5P 15° 75 23 - 38 7 5.5 8 3 2 △ LSHMQ010O20 20° LSHMQ012P8 8° M12 × 1.75 P2 LSHMQ012P15 2.5P 15° 82 26 - 42 8.5 6.5 9 3 2 △ Center Drills LSHMQ012P20 20° Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order SP-52 For improvement, spec may change without advance notice. 369