Obtains maximum effective contact length. High accuracy use for large end of a connecting rod.
| DIA | LENGHT | DIA | LENGHT | DIA | LENGHT | 
| In mm | In mm | In mm | In mm | In mm | In mm | 
| 1.497 | 11.8 | 3 | 11.7 | 5 | 19.8 | 
| 1.5 | 9.3 | 3 | 29.8 | 6 | 10 | 
| 1.588 | 10.06 | 3.175 | 3.175 | 6 | 12 | 
| 1.588 | 16.669 | 3.5 | 11.8 | 6.35 | 6.35 | 
| 2 | 7.8 | 3.5 | 12.8 | 6.35 | 16.67 | 
| 2 | 36 | 3.5 | 15.8 | 7 | 10 | 
| 2.381 | 10.57 | 3.5 | 29.8 | 7 | 12 | 
| 2.385 | 16.86 | 4 | 5 | 7.25 | 12 | 
| 2.387 | 2.387 | 4 | 6 | 7.37 | 12 | 
| 2.5 | 7.8 | 4 | 8 | 7.5 | 12 | 
| 2.5 | 9.8 | 4.95 | 8.5 | 7.5 | 16 | 
| 2.5 | 19.8 | 5 | 8 | 7.5 | 19 |