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 Spiral Fluted Taps Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (for blind hole) Spiral Fluted Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes P3 SPR012P M12 × 1.75 2.5P 82 26 - 42 8.5 6.5 9 3 5 ○ P4 SPS012P P2 SPQ012O ◎ M12 × 1.5 P3 SPR012O 2.5P 82 26 - 42 8.5 6.5 9 3 5 (for through hole) Spiral Fluted Taps P4 SPS012O △ P2 SPQ012N ◎ M12 × 1.25 P3 SPR012N 2.5P 82 26 - 42 8.5 6.5 9 3 5 ○ P4 SPS012N △ (for through hole) Spiral Pointed Taps P2 SPQ012M ○ M12 × 1 P3 SPR012M 2.5P 82 26 - 42 8.5 6.5 9 3 5 P4 SPS012M △ M12 × 0.75 P2 SPQ012J 2.5P 82 14 - 42 8.5 6.5 9 3 6 △ M12 × 0.5 P2 SPQ012G 2.5P 82 12 - 42 8.5 6.5 9 3 6 △ Hand Taps M13 × 1 P2 SPQ013M 2.5P 88 26 - 45 10.5 8 11 3 5 △ P2 SPQ014Q ◎ M14 × 2 P3 SPR014Q 2.5P 88 26 - 45 10.5 8 11 3 5 P4 SPS014Q △ Carbide Taps Cemented P2 SPQ014O ◎ M14 × 1.5 P3 SPR014O 2.5P 88 26 - 45 10.5 8 11 3 5 △ P4 SPS014O ○ M14 × 1.25 P2 SPQ014N 2.5P 88 26 - 45 10.5 8 11 3 5 ○ Roll Taps M14 × 1 P2 SPQ014M 2.5P 88 26 - 45 10.5 8 11 3 5 ○ M15 × 2 P2 SPQ015Q 2.5P 95 26 - 48 12.5 10 13 3 5 △ M15 × 1.5 P2 SPQ015O 2.5P 95 26 - 48 12.5 10 13 3 5 △ M15 × 1 P2 SPQ015M 2.5P 95 26 - 48 12.5 10 13 3 5 △ P2 SPQ016Q ◎ Simple Inspection Tools Special Thread Taps P3 SPR016Q M16 × 2 2.5P 95 26 - 48 12.5 10 13 3 5 ○ P4 SPS016Q P5 SPT016Q △ P2 SPQ016O ◎ Pipe Taps M16 × 1.5 P3 SPR016O 2.5P 95 26 - 48 12.5 10 13 3 5 △ P4 SPS016O ○ M16 × 1 P2 SPQ016M 2.5P 95 26 - 48 12.5 10 13 3 5 ○ M17 × 1.5 P2 SPQ017O 2.5P 100 33 - 51 14 11 14 4 5 △ Thread Mills M17 × 1 P2 SPQ017M 2.5P 100 18 - 51 14 11 14 4 6 △ P3 SPR018R ◎ M18 × 2.5 2.5P 100 33 - 51 14 11 14 4 5 P4 SPS018R △ M18 × 2 P3 SPR018Q 2.5P 100 33 - 51 14 11 14 4 5 △ Dies P2 SPQ018O ◎ M18 × 1.5 P3 SPR018O 2.5P 100 33 - 51 14 11 14 4 5 P4 SPS018O △ M18 × 1.25 P2 SPQ018N 2.5P 100 33 - 51 14 11 14 4 5 △ M18 × 1 P2 SPQ018M 2.5P 100 18 - 51 14 11 14 4 6 ○ Center Drills M19 × 1.5 P3 SPR019O 2.5P 105 33 - 50 15 12 15 4 7 △ M19 × 1 P2 SPQ019M 2.5P 105 18 - 50 15 12 15 4 8 △ P3 SPR020R ◎ M20 × 2.5 2.5P 105 33 - 50 15 12 15 4 7 P4 SPS020R ○ Centering Tools M20 × 2 P3 SPR020Q 2.5P 105 33 - 50 15 12 15 4 7 ○ P3 SPR020O ◎ M20 × 1.5 2.5P 105 33 - 50 15 12 15 4 7 P4 SPS020O △ JIS ◎=Standard ○=Semi standard △=Made to order SP-6 For improvement, spec may change without advance notice. 323