TRICONE Bits
PIN THREADS EXPLANATIONS
Tricone sizes from 3 ½ to 4 ½ goes with 2 3/8 Reg. API (standard)
Tricone sizes from 4 5/8 to 5 ½ goes with 2 7/8 Reg. API (standard)
Tricone sizes from 5 5/8 to 7 3/8 goes with 3 ½ Reg. API (standard)
| Size | Standard Pin Size | Size | Standard Pin Size | Size | Standard Pin Size |
| 2-5/8" | A - AW Rod & 4 THD N Rod | 4" | 2-3/8" API | 5-1/2" | 2-7/8" API |
| 2-3/4" | A - AW Rod & 4 THD N Rod | 4-1/8" | 2-3/8" API | 5-5/8" | 3-1/2" API |
| 2-7/8" | 4THD N Rod | 4-1/4" | 2-3/8" API | 5-3/4" | 3-1/2" API |
| 2-15/16" | 4THD N Rod | 4-3/8" | 2-3/8" API | 5-7/8" | 3-1/2" API |
| 3" | 4THD N Rod | 4-1/2" | 2-3/8" API | 6" | 3-1/2" API |
| 3-1/8" | 4THD N Rod | 4-5/8" | 2-7/8" API | 6-1/8" | 3-1/2" API |
| 3-1/4" | 4THD N Rod | 4-3/4" | 2-7/8" API | 6-1/4" | 3-1/2" API |
| 3-1/2" | 4THD N Rod | 4-7/8" | 2-7/8" API | 6-1/2" | 3-1/2" API |
| 3-5/8" | 2-3/8" API | 5" | 2-7/8" API | 6-5/8" | 3-1/2" API |
| 3-3/4" | 2-3/8" API | 5-1/8" | 2-7/8" API | 6-3/4" | 3-1/2" API |
| 3-7/8" | 2-3/8" API | 5-1/4" | 2-7/8" API | 7-3/8" | 3-1/2" API |
