Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk LS-PO Long Shank 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 7/16-20UNF P3 PORU07NL15 5P 150 26 - 50 8.5 6.5 9 3 2 △ PORU08RL15 150 1/2-13UNC P3 5P 26 - 60 10.5 8 11 3 2 △ PORU08RL20 200 PORU08NL15 150 (for through hole) Spiral Fluted Taps 1/2-20UNF P3 5P 26 - 60 10.5 8 11 3 2 △ PORU08NL20 200 PORU10UL15 150 5/8-11UNC P3 5P 26 - 60 12.5 10 13 3 2 △ PORU10UL20 200 PORU10OL15 150 (for through hole) Spiral Pointed Taps 5/8-18UNF P3 5P 26 - 60 12.5 10 13 3 2 △ PORU10OL20 200 POSU12VL15 150 3/4-10UNC P4 5P 33 - 70 15 12 15 3 3 △ POSU12VL20 200 PORU12PL15 150 3/4-16UNF P3 5P 33 - 70 15 12 15 3 3 △ Hand Taps PORU12PL20 200 7/8-9UNC P4 POSU14WL20 5P 200 33 - 70 17 13 16 3 3 △ 7/8-14UNF P3 PORU14QL20 5P 200 33 - 70 17 13 16 3 3 △ 1 -8UNC P4 POSU16XL20 5P 200 39 - 80 19 15 18 3 3 △ 1 -12UNF P4 POSU16SL20 5P 200 39 - 80 19 15 18 3 3 △ Carbide Taps Cemented For Whitworth Threads Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes PORW04NL10 100 1/4W20 P3 5P 15 26 40 6 4.5 7 3 1 △ Roll Taps PORW04NL15 150 PORW05OL10 100 5/16W18 P3 5P 19 - 50 6.2 5 8 3 2 △ PORW05OL15 150 PORW06PL10 100 3/8W16 P3 5P 23 - 50 7 5.5 8 3 2 △ PORW06PL15 150 Simple Inspection Tools Special Thread Taps 7/16W14 P3 PORW07QL15 5P 150 26 - 50 8.5 6.5 9 3 2 △ PORW08SL15 150 1/2W12 P3 5P 26 - 60 10.5 8 11 3 2 △ PORW08SL20 200 PORW10UL15 150 Pipe Taps 5/8W11 P3 5P 26 - 60 12.5 10 13 3 2 △ PORW10UL20 200 POSW12VL15 150 3/4W10 P4 5P 33 - 70 15 12 15 3 3 △ POSW12VL20 200 POSW14WL15 150 7/8W9 P4 5P 33 - 70 17 13 16 3 3 △ Thread Mills POSW14WL20 200 POSW16XL15 150 1 W8 P4 5P 39 - 80 19 15 18 3 3 △ POSW16XL20 200 Dies Center Drills Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order PO-0240 For improvement, spec may change without advance notice. 413