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 HC+SP OX / HC-SP OX (for blind hole) Spiral Fluted Taps Spiral Fluted Taps for High Carbon Steels, Oxided Specification (for through hole) Spiral Fluted Taps ■Spiral fluted tap suitable for high carbon steels such as E S55C and the like, oxided to avoid welding trouble. Oxide HC+SP OX ~ M6 Recommended Tapping Speeds depending on Materials HC-SP OX M8 ~ (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 L ℓ ℓn ℓs Ds K ℓk No. of Type Stock Roll Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads M3 × 0.5 P1 SCPP3.0GX 2.5P 46 9 14 26 4 3.2 6 3 1 ◎ M4 × 0.7 P2 SCPQ4.0IX 2.5P 52 11 17 29 5 4 7 3 1 ◎ M5 × 0.8 P2 SCPQ5.0KX 2.5P 60 13 22 33 5.5 4.5 7 3 1 ◎ Simple Inspection Tools Special Thread Taps M6 × 1 P2 SCPQ6.0MX 2.5P 62 15 26 33 6 4.5 7 3 1 ◎ M8 × 1.25 P2 SCMQ8.0NX 2.5P 70 19 - 36 6.2 5 8 3 2 ◎ M10 × 1.5 P2 SCMQ010OX 2.5P 75 23 - 38 7 5.5 8 3 2 ◎ M12 × 1.75 P2 SCMQ012PX 2.5P 82 26 - 42 8.5 6.5 9 3 2 ◎ Pipe Taps M16 × 2 P2 SCMQ016QX 2.5P 95 26 - 48 12.5 10 13 3 2 ◎ Thread Mills Dies Center Drills Centering Tools JIS SP-48 For improvement, spec may change without advance notice. 365