Machine Taps - Left Hand (BSW) - ISO 529
| Nominal Diameter, D | L 1 | L 2 | D 2 | ¡õ |
| BSW 1/8 X 40 | 48 | 11 | 3.15 | 2.5 |
| BSW 3/16 X 24 | 58 | 16 | 5 | 4 |
| BSW 1/4 X 20 | 66 | 19 | 6.3 | 5 |
| BSW 5/16 X 18 | 72 | 22 | 8 | 6.3 |
| BSW 3/8 X 16 | 80 | 24 | 10 | 6 |
| BSW 7/16 X 14 | 85 | 25 | 8 | 6.3 |
| BSW 1/2 X 12 | 89 | 29 | 9 | 7.1 |
| BSW 9/16 X 12 | 95 | 30 | 11.2 | 9 |
| BSW 5/8 X 11 | 102 | 32 | 12.5 | 10 |
| BSW 3/4 X 10 | 112 | 37 | 14 | 11.2 |
| BSW 7/8 X 9 | 118 | 38 | 16 | 12.5 |
| BSW 1" X 8 | 130 | 45 | 18 | 14 |
