Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk TYPE:1 TYPE:2 (for blind hole) Spiral Fluted Taps Segment:1A (for through hole) Spiral Fluted Taps Size Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (for through hole) Spiral Pointed Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads HI73.0G5 5P M3 × 0.5 46 9 14 26 4 3.2 6 3 1 ◎ HI73.0G2 2P HI74.0I5 5P Hand Taps M4 × 0.7 52 11 17 29 5 4 7 3 1 ◎ HI74.0I2 2P HI75.0K5 5P M5 × 0.8 60 13 22 33 5.5 4.5 7 3 1 ◎ HI75.0K2 2P HI76.0M5 5P M6 × 1 62 15 26 33 6 4.5 7 3 1 ◎ Carbide Taps Cemented HI76.0M2 2P HI78.0N5 5P M8 × 1.25 70 19 - 36 6.2 5 8 3 2 ◎ HI78.0N2 2P HI7010O5 5P M10 × 1.5 75 23 - 38 7 5.5 8 3 2 ◎ Roll Taps HI7010O2 2P Blister Pack Size Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock Simple Inspection Tools Special Thread Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads HI73.0G5BP 5P M3 × 0.5 46 9 14 26 4 3.2 6 3 1 ◎ HI73.0G2BP 2P HI74.0I5BP 5P Pipe Taps M4 × 0.7 52 11 17 29 5 4 7 3 1 ◎ HI74.0I2BP 2P HI75.0K5BP 5P M5 × 0.8 60 13 22 33 5.5 4.5 7 3 1 ◎ HI75.0K2BP 2P HI76.0M5BP 5P M6 × 1 62 15 26 33 6 4.5 7 3 1 ◎ Thread Mills HI76.0M2BP 2P HI78.0N5BP 5P M8 × 1.25 70 19 - 36 6.2 5 8 3 2 ◎ HI78.0N2BP 2P HI7010O5BP 5P M10 × 1.5 75 23 - 38 7 5.5 8 3 2 ◎ Dies HI7010O2BP 2P Center Drills Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order HT-2 For improvement, spec may change without advance notice. 427