Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk +PO (for blind hole) Spiral Fluted Taps Plus Series Spiral Pointed Taps Specification (for through hole) Spiral Fluted Taps ■More suitable than PO for through hole tapping of middle E carbon steels in middle speed tapping area. Recommended Tapping Speeds depending on Materials (for through hole) Spiral Pointed Taps Medium carbon steels 10〜15 TYPE:1 For icon explanation, refer to P.50 Hand Taps Segment:1E Carbide Taps Cemented Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads M3 × 0.5 P2 PNPQ3.0G 5P 46 9 14 26 4 3.2 6 3 1 ◎ M3.5 × 0.6 P2 PNPQ3.5H 5P 52 11 16 29 5 4 7 3 1 ○ Roll Taps M4 × 0.7 P2 PNPQ4.0I 5P 52 11 17 29 5 4 7 3 1 ◎ M5 × 0.8 P2 PNPQ5.0K 5P 60 13 22 33 5.5 4.5 7 3 1 ◎ M6 × 1 P2 PNPQ6.0M 5P 62 15 26 33 6 4.5 7 3 1 ◎ Simple Inspection Tools Special Thread Taps Pipe Taps Thread Mills Dies Center Drills Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order PO-10 For improvement, spec may change without advance notice. 403