1.certified by API
2.steel tooth roller bit
3.For soft to medium formation drillin
Port: Tianjin
Minimum Order Quantity: 1 Piece/Pieces
Supply Ability: 500 Piece/Pieces per Month
Payment Terms: L/C,T/T,Western Union
Contact SupplierPackaging Detail: in wooden or iron case
Delivery Detail: About 1week after payment
size | bit type | |
| in. | mm | |
| 6 | 152.4 | 136,127,517,537,617,637 |
| 6 1/2 | 165.1 | 126,127,517,537,617,637 |
| 7 1/2 | 190.5 | 126,136,216,227,517,537,617,637 |
| 8 1/2 | 215.9 | 114,124,126,127,517,537,617,637 |
| 9 1/2 | 241.3 | 126,127,517,537,617,637 |
| 9 5/8 | 244.5 | 127,517,537,617,637 |
| 9 7/8 | 250.8 | 127,517,537,617,637 |
| 12 1/4 | 311.1 | 114,126,127,517,537,617,637 |
| 13 5/8 | 346 | 117,126,127,517,537,617,637 |
| 14 3/4 | 374.6 | 124,517,537,617,637 |
| 15 | 381 | 124,517,537,617,637 |
| 15 1/2 | 393.7 | 124,517,537,617,637 |
| 17 1/2 | 444.5 | 114 117 124 126 216 |
| 22 | 558.8 | 124,517,537,617,637 |
| 24 | 609.6 | 124,517,537,617,637 |
| 26 | 660.4 | 114,517,537,617,637 |
All models listed above are also available,When ordering, please sepcify the following:
Diameter
IADC code
Thread Connection
Bearing structure
Drilling formation