Flat Bars
| b | a | ||||||
| 1/2 | 1/8 | 3/16 | 1/4 | ||||
| 5/8 | 1/8 | 3/16 | 1/4 | ||||
| 3/4 | 1/8 | 3/16 | 1/4 | 5/16 | |||
| 7/8 | 1/8 | 3/16 | 1/4 | 5/16 | |||
| 1 | 1/8 | 3/16 | 1/4 | 5/16 | 3/8 | ||
| 1 1/4 | 1/8 | 3/16 | 1/4 | 5/16 | 3/8 | ||
| 1 1/2 | 1/8 | 3/16 | 1/4 | 5/16 | 3/8 | 1/2 | |
| 1 3/4 | 1/8 | 3/16 | 1/4 | 5/16 | 3/8 | 1/2 | |
| 2 | 1/8 | 3/16 | 1/4 | 5/16 | 3/8 | 1/2 | |
| 2 1/4 | 3/16 | 1/4 | 5/16 | 3/8 | 1/2 | 5/8 | |
| 2 1/2 | 3/16 | 1/4 | 5/16 | 3/8 | 1/2 | 5/8 | |
| 2 3/4 | 3/16 | 1/4 | 5/16 | 3/8 | 1/2 | 5/8 | |
| 3 | 1/4 | 5/16 | 3/8 | 1/2 | 5/8 | 3/4 | |
| b | a | ||||||||||
| 12 | 3 | 4 | 5 | 6 | |||||||
| 14 | 3 | 4 | 5 | 6 | 8 | ||||||
| 16 | 3 | 4 | 5 | 6 | 8 | ||||||
| 20 | 3 | 4 | 5 | 6 | 8 | 10 | |||||
| 25 | 3 | 4 | 5 | 6 | 8 | 10 | |||||
| 30 | 3 | 4 | 5 | 6 | 8 | 10 | |||||
| 35 | 3 | 4 | 5 | 6 | 8 | 10 | |||||
| 40 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | |||
| 50 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | |
| 60 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | |||
| 70 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | |||
| 80 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||||