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 SP OX (for blind hole) Spiral Fluted Taps Spiral Fluted Taps, Oxided Specification (for through hole) Spiral Fluted Taps E Oxide ~ M2.6 M26 ~ Recommended Tapping Speeds depending on Materials (for through hole) Spiral Pointed Taps ow carbon steels Medium carbon steels 5〜10 5〜10 For icon explanation, refer to P.50 Hand Taps TYPE:1 TYPE:2 Carbide Taps Cemented TYPE:3 TYPE:4 Roll Taps TYPE:5 TYPE:6 Simple Inspection Tools Special Thread Taps Pipe Taps Oversize Thread Mills Segment:1C Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes Dies For Metric Threads M1.4 × 0.3 P1 SPP1.4CX 2.5P 36 5.4 - 24 3 2.5 5 2 1 △ M1.6 × 0.35 P1 SPP1.6DX 2.5P 36 6.3 - 24 3 2.5 5 2 2 △ M1.7 × 0.35 P1 SPP1.7DX 2.5P 36 6.3 - 24 3 2.5 5 2 2 △ M2 × 0.4 P1 SPP2.0EX 2.5P 42 7.2 12 27 3 2.5 5 2 3 △ Center Drills M2.5 × 0.45 P1 SPP2.5FX 2.5P 46 8.1 14 29 3 2.5 5 2 3 △ M2.6 × 0.45 P1 SPP2.6FX 2.5P 46 8.1 14 29 3 2.5 5 2 3 △ P1 SPP3.0GX ◎ M3 × 0.5 P2 SPQ3.0GX 2.5P 46 9 14 26 4 3.2 6 3 3 Centering Tools P3 SPR3.0GX △ 3M0.6 P1 SPP3.0HX 2.5P 46 9 14 26 4 3.2 6 3 3 △ M3.5 × 0.6 P1 SPP3.5HX 2.5P 52 11 16 29 5 4 7 3 3 △ JIS ◎=Standard ○=Semi standard △=Made to order SP-16 For improvement, spec may change without advance notice. 333