
| Overall length | Thread length | Thread+ leng | Neck th l | Shank ength | Shank dia. | Size of square | Length of square | ||||||
| LS-PO Lon | g Shank | Spiral Poin | ted Tap | s | L | ℓ | ℓ | n | ℓs | Ds | K | ℓk | |
| Size | Class | Code | Chamfer | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. of flutes | Type | Stock |
| 7/16-20UNF | P3 | PORU07NL15 | 5P | 150 | 26 | - | 50 | 8.5 | 6.5 | 9 | 3 | 2 | △ |
| 1/2-13UNC | P3 | PORU08RL15 PORU08RL20 | 5P | 150 200 | 26 | - | 60 | 10.5 | 8 | 11 | 3 | 2 | △ |
| 1/2-20UNF | P3 | PORU08NL15 PORU08NL20 | 5P | 150 200 | 26 | - | 60 | 10.5 | 8 | 11 | 3 | 2 | △ |
| 5/8-11UNC | P3 | PORU10UL15 PORU10UL20 | 5P | 150 200 | 26 | - | 60 | 12.5 | 10 | 13 | 3 | 2 | △ |
| 5/8-18UNF | P3 | PORU10OL15 PORU10OL20 | 5P | 150 200 | 26 | - | 60 | 12.5 | 10 | 13 | 3 | 2 | △ |
| 3/4-10UNC | P4 | POSU12VL15 POSU12VL20 | 5P | 150 200 | 33 | - | 70 | 15 | 12 | 15 | 3 | 3 | △ |
| 3/4-16UNF | P3 | PORU12PL15 PORU12PL20 | 5P | 150 200 | 33 | - | 70 | 15 | 12 | 15 | 3 | 3 | △ |
| 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 | △ |
| For Whitworth Thre | ads | ||||||||||||
| Size | Class | Code | Chamfer | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. of flutes | Type | Stock |
| 1/4W20 | P3 | PORW04NL10 PORW04NL15 | 5P | 100 150 | 15 | 26 | 40 | 6 | 4.5 | 7 | 3 | 1 | △ |
| 5/16W18 | P3 | PORW05OL10 PORW05OL15 | 5P | 100 150 | 19 | - | 50 | 6.2 | 5 | 8 | 3 | 2 | △ |
| 3/8W16 | P3 | PORW06PL10 PORW06PL15 | 5P | 100 150 | 23 | - | 50 | 7 | 5.5 | 8 | 3 | 2 | △ |
| 7/16W14 | P3 | PORW07QL15 | 5P | 150 | 26 | - | 50 | 8.5 | 6.5 | 9 | 3 | 2 | △ |
| 1/2W12 | P3 | PORW08SL15 PORW08SL20 | 5P | 150 200 | 26 | - | 60 | 10.5 | 8 | 11 | 3 | 2 | △ |
| 5/8W11 | P3 | PORW10UL15 PORW10UL20 | 5P | 150 200 | 26 | - | 60 | 12.5 | 10 | 13 | 3 | 2 | △ |
| 3/4W10 | P4 | POSW12VL15 POSW12VL20 | 5P | 150 200 | 33 | - | 70 | 15 | 12 | 15 | 3 | 3 | △ |
| 7/8W9 | P4 | POSW14WL15 POSW14WL20 | 5P | 150 200 | 33 | - | 70 | 17 | 13 | 16 | 3 | 3 | △ |
| 1 W8 | P4 | POSW16XL15 POSW16XL20 | 5P | 150 200 | 39 | - | 80 | 19 | 15 | 18 | 3 | 3 | △ |