Roller cone bits ( Page 2)
| Bit diameter | Bit designation | Connection thread | |
| mm | inch | IADC code | API 7-2 |
| 228.6 | 9 | 632Y | 4 ½" REG |
| 228.6 | 9 | 632Y | 4 ½" REG |
| 228.6 | 9 | 732Y | 4 ½" REG |
| 228.6 | 9 | 822Y | 4 ½" REG |
| 233.0 | 9 11/64 | 412X | 4 ½" REG |
| 233.0 | 9 11/64 | 422X | 4 ½" REG |
| 233.0 | 9 11/64 | 432X | 4 ½" REG |
| 233.0 | 9 11/64 | 522X | 4 ½" REG |
| 233.0 | 9 11/64 | 532X | 4 ½" REG |
| 233.0 | 9 11/64 | 542Y | 4 ½" REG |
| 233.0 | 9 11/64 | 622Y | 4 ½" REG |
| 233.0 | 9 11/64 | 632Y | 4 ½" REG |
| 233.0 | 9 11/64 | 642Y | 4 ½" REG |
| 233.0 | 9 11/64 | 732Y | 4 ½" REG |
| 233.0 | 9 11/64 | 822Y | 4 ½" REG |
| 233.0 | 9 11/64 | 832Z | 4 ½" REG |
| 244.5 | 9 ⅝ | 422X | 4 ½" FH |
| 244.5 | 9 ⅝ | 632Y | 4 ½" FH |
| 244.5 | 9 ⅝ | 642Y | 4 ½" FH |
| 244.5 | 9 ⅝ | 712Y | 4 ½" FH |
| 244.5 | 9 ⅝ | 822Z | 4 ½" FH |
| 244.5 | 9 ⅝ | 832Z | 4 ½" FH |
| 250.8 | 9 ⅞ | 512X | 4 ½" FH |
| 250.8 | 9 ⅞ | 512X | 6 ⅝" REG |
| 250.8 | 9 ⅞ | 542Y | 4 ½" FH |
| 250.8 | 9 ⅞ | 542Y | 6 ⅝" REG |
| 250.8 | 9 ⅞ | 612X | 4 ½" FH |
| 250.8 | 9 ⅞ | 612X | 6 ⅝" REG |
| 250.8 | 9 ⅞ | 622Y | 4 ½" FH |
| 250.8 | 9 ⅞ | 622Y | 6 ⅝" REG |