Drag Bits Step Type One Piece 3-way
| Bit Size | Pin Type |
| 2-3/4" - 3-1/2" | 4 THD N-ROD |
| 3-5/8" - 4-3/4" | 2-3/8" API PIN |
| 4-7/8" - 5-1/8" | 2-3/8" API PIN |
| 5-1/4" - 5-1/2" | 2-3/8" API PIN |
| 5-5/8" - 6" | 2-3/8" API PIN |
| 6-1/8" - 6-1/4" | 2-3/8" API PIN |
| 6-1/2" - 6-3/4" | 2-3/8" API PIN |
| 5-1/2" - 6-3/4" | 3-1/2" API PIN |
| 6-7/8" - 7-7/8" | 3-1/2" API PIN |
| 8" - 9" | 3-1/2" API PIN |
| 9-1/8" - 10-7/8" | 3-1/2" API PIN |
| 7-7/8" - 8-7/8" | 4-1/2" API PIN |
| 9" - 9-7/8" | 4-1/2" API PIN |
| 10" - 10-7/8" | 4-1/2" API PIN |
| 11" - 12-1/4" | 3-1/2" or 4-1/2" API PIN |
Kelly Bits
| Bit Size | Pin Type |
| 3-7/8" | ARCO, 2" IF |
| 4-3/4" - 5-1/4" | 2-3/8" MHJR, FA, MR, IF |
| 5-1/2" - 6-3/4" | 2-3/8" MHJR, FA, MR, IF |
| 6-7/8" - 7-7/8" | 2-3/8" MHJR, FA, MR, IF |
| 8" - 10" | 2-3/8" MHJR, FA, MR, IF |
H.D. Chevron One-Piece Bits
| Bit Size | Pin Type |
| 3/4" - 2-1/2" | A-ROD, AW |
| 2-5/8" - 2-7/8" | A-ROD, AW |
| 2-3/4" - 3-1/4" | 3THD/4THD N-ROD, 2" IF |
| 3-3/8" - 3-3/4" | 3THD/4THD N-ROD, 2" IF |
| 3-3/4" - 4-3/4" | 2-3/8" API PIN |
| 4-7/8" - 5-1/8" | 2-3/8" API PIN |
| 5-1/4" - 5-1/2" | 2-3/8" API PIN |
| 4-5/8" - 5" | 2-7/8" API PIN |
| 5-1/8" - 5-1/2" | 2-7/8" API PIN |
| 5-1/2" - 6-1/4" | 3-1/2" API PIN |
| 6-1/2" - 6-3/4" | 3-1/2" API PIN |
| 7" - 7-1/2" | 3-1/2" API PIN |
| 7-5/8" - 8" | 3-1/2" API PIN |
