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 SU+PO/SU-PO Spiral Pointed Taps for Stainless Steels 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 M22 × 1.5 P4 PUMS022O 5P 115 33 - 55 17 13 16 3 5 △ P4 PUMS024S ○ M24 × 3 P5 PUMT024S 5P 120 39 - 55 19 15 18 3 5 P6 PUMU024S △ (for through hole) Spiral Fluted Taps M24 × 1.5 P4 PUMS024O 5P 120 39 - 55 19 15 18 3 5 △ M27 × 3 P4 PUMS027S 5P 130 39 - 60 20 15 18 4 5 △ M27 × 1.5 P4 PUMS027O 5P 130 39 - 60 20 15 18 4 5 △ M30 × 3.5 P5 PUMT030T 5P 135 46 - 62 23 17 20 4 5 △ (for through hole) Spiral Pointed Taps M30 × 1.5 P4 PUMS030O 5P 135 46 - 62 23 17 20 4 5 △ M33 × 3.5 P5 PUMT033T 5P 145 46 - 67 25 19 22 4 5 △ M36 × 4 P5 PUMT036U 5P 155 52 - 71 28 21 24 4 5 △ M39 × 4 P5 PUMT039U 5P 165 52 - 76 30 23 26 4 5 △ M42 × 4.5 P5 PUMT042V 5P 175 59 - 81 32 26 30 4 5 △ Hand Taps For Unified Threads No.2-56UNC P1 PUMPUN2E 5P 42 8.1 12 27 3 2.5 5 2 3 △ No.4-40UNC P2 PUMQUN4H 5P 46 9 14 26 4 3.2 6 2 3 △ No.4-48UNF P1 PUMPUN4F 5P 46 9 14 26 4 3.2 6 2 3 △ Carbide Taps Cemented No.5-40UNC P2 PUMQUN5H 5P 52 11 16 29 5 4 7 3 3 △ No.5-44UNF P1 PUMPUN5G 5P 52 11 16 29 5 4 7 3 3 △ No.6-32UNC P2 PUMQUN6J 5P 52 11 16 29 5 4 7 3 3 △ No.6-40UNF P2 PUMQUN6H 5P 52 11 16 29 5 4 7 3 3 △ Roll Taps No.8-32UNC P2 PUMQUN8J 5P 60 13 21 33 5.5 4.5 7 3 3 △ No.8-36UNF P2 PUMQUN8I 5P 60 13 21 33 5.5 4.5 7 3 3 △ No.10-24UNC P2 PUMQUNAM 5P 60 13 22 33 5.5 4.5 7 3 3 △ No.10-32UNF P2 PUMQUNAJ 5P 60 13 22 33 5.5 4.5 7 3 3 △ Simple Inspection Tools Special Thread Taps 1/4-20UNC P2 PUMQU04N 5P 62 15 26 33 6 4.5 7 3 3 △ 1/4-28UNF P2 PUMQU04K 5P 62 15 26 33 6 4.5 7 3 3 △ 5/16-18UNC P3 PUMRU05O 5P 70 19 - 36 6.2 5 8 3 4 △ 5/16-24UNF P2 PUMQU05M 5P 70 19 - 36 6.2 5 8 3 4 △ 3/8-16UNC P3 PUMRU06P 5P 75 23 - 38 7 5.5 8 3 4 △ Pipe Taps 3/8-24UNF P2 PUMQU06M 5P 75 23 - 38 7 5.5 8 3 4 △ 7/16-14UNC P3 PUMRU07Q 5P 82 26 - 42 8.5 6.5 9 3 4 △ 7/16-20UNF P3 PUMRU07N 5P 82 26 - 42 8.5 6.5 9 3 4 △ 1/2-13UNC P3 PUMRU08R 5P 88 26 - 45 10.5 8 11 3 4 △ Thread Mills 1/2-20UNF P3 PUMRU08N 5P 88 26 - 45 10.5 8 11 3 4 △ 9/16-18UNF P3 PUMRU09O 5P 95 26 - 48 12.5 10 13 3 4 △ 5/8-11UNC P3 PUMRU10U 5P 95 26 - 48 12.5 10 13 3 4 △ For Whitworth Threads Dies 3/16W24 P2 PUMQW03M 5P 60 13 21 33 5.5 4.5 7 3 3 △ 1/4W20 P3 PUMRW04N 5P 62 15 26 33 6 4.5 7 3 3 △ 5/16W18 P3 PUMRW05O 5P 70 19 - 36 6.2 5 8 3 4 △ 3/8W16 P3 PUMRW06P 5P 75 23 - 38 7 5.5 8 3 4 △ Center Drills 7/16W14 P3 PUMRW07Q 5P 82 26 - 42 8.5 6.5 9 3 4 △ 1/2W12 P3 PUMRW08S 5P 88 26 - 45 10.5 8 11 3 4 △ 5/8W11 P3 PUMRW10U 5P 95 26 - 48 12.5 10 13 3 4 △ 3/4W10 P4 PUMSW12V 5P 105 33 - 50 15 12 15 3 5 △ Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order PO-24 For improvement, spec may change without advance notice. 417