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 Spiral Pointed 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 P4 POS014Q ○ M14 × 2 5P 88 26 - 45 10.5 8 11 3 5 P5 POT014Q △ P3 POR014O ○ M14 × 1.5 P4 POS014O 5P 88 26 - 45 10.5 8 11 3 5 (for through hole) Spiral Fluted Taps P5 POT014O △ M14 × 1.25 P3 POR014N 5P 88 26 - 45 10.5 8 11 3 5 △ M14 × 1 P3 POR014M 5P 88 26 - 45 10.5 8 11 3 5 ○ M14 × 0.75 P3 POR014J 5P 88 15 - 45 10.5 8 11 3 6 △ (for through hole) Spiral Pointed Taps M15 × 2 P4 POS015Q 5P 95 26 - 48 12.5 10 13 3 5 △ M15 × 1.5 P3 POR015O 5P 95 26 - 48 12.5 10 13 3 5 △ M15 × 1 P3 POR015M 5P 95 26 - 48 12.5 10 13 3 5 △ P4 POS016Q ◎ M16 × 2 5P 95 26 - 48 12.5 10 13 3 5 Hand Taps P5 POT016Q △ P3 POR016O ○ M16 × 1.5 P4 POS016O 5P 95 26 - 48 12.5 10 13 3 5 P5 POT016O △ M16 × 1 P3 POR016M 5P 95 26 - 48 12.5 10 13 3 5 ○ Carbide Taps Cemented P4 POS018R ○ M18 × 2.5 5P 100 33 - 51 14 11 14 3 5 P5 POT018R △ M18 × 2 P4 POS018Q 5P 100 33 - 51 14 11 14 3 5 △ P4 POS018O ○ Roll Taps M18 × 1.5 5P 100 33 - 51 14 11 14 3 5 P5 POT018O △ M18 × 1 P3 POR018M 5P 100 18 - 51 14 11 14 3 6 ○ P4 POS020R ◎ M20 × 2.5 5P 105 33 - 50 15 12 15 3 7 P5 POT020R △ M20 × 2 P4 POS020Q 5P 105 33 - 50 15 12 15 3 7 △ Simple Inspection Tools Special Thread Taps P4 POS020O ○ M20 × 1.5 5P 105 33 - 50 15 12 15 3 7 P5 POT020O △ M20 × 1 P3 POR020M 5P 105 18 - 50 15 12 15 3 8 ○ P4 POS022R ○ Pipe Taps M22 × 2.5 5P 115 33 - 55 17 13 16 3 7 P5 POT022R △ M22 × 2 P4 POS022Q 5P 115 33 - 55 17 13 16 3 7 △ P4 POS022O ○ M22 × 1.5 5P 115 33 - 55 17 13 16 3 7 P5 POT022O △ Thread Mills M22 × 1 P3 POR022M 5P 115 19 - 55 17 13 16 3 8 △ P4 POS024S ◎ M24 × 3 5P 120 39 - 55 19 15 18 3 7 P5 POT024S △ M24 × 2 P4 POS024Q 5P 120 39 - 55 19 15 18 3 7 ○ Dies P4 POS024O ○ M24 × 1.5 5P 120 39 - 55 19 15 18 3 7 P5 POT024O △ M24 × 1 P3 POR024M 5P 120 19 - 55 19 15 18 3 8 △ M25 × 2 P4 POS025Q 5P 125 39 - 58 19 15 18 3 7 △ M25 × 1.5 P4 POS025O 5P 125 39 - 58 19 15 18 3 7 ○ Center Drills M26 × 2 P4 POS026Q 5P 130 39 - 60 20 15 18 4 7 △ M26 × 1.5 P4 POS026O 5P 130 39 - 60 20 15 18 4 7 ○ M26 × 1 P3 POR026M 5P 130 20 - 60 20 15 18 4 8 △ M27 × 3 P4 POS027S 5P 130 39 - 60 20 15 18 4 7 ○ Centering Tools M27 × 1.5 P4 POS027O 5P 130 39 - 60 20 15 18 4 7 ○ M27 × 1 P3 POR027M 5P 130 20 - 60 20 15 18 4 8 △ M28 × 2 P4 POS028Q 5P 135 46 - 62 23 17 20 4 7 △ JIS ◎=Standard ○=Semi standard △=Made to order PO-064 For improvement, spec may change without advance notice. 399