| Size | 12 1/4" 311.2mm |
| Pin shank size | 6 5/8 Reg |
| Bit type | FJ117 |
| IADC Code | 117 |
| types of bearing | jounmal beanngs |
| types of sealing | metal rings or rubber rings |
| Application formation | Very soft with low compressive strength and high drillability, such as shale, clay,sandstone and conglomerate, etc |
| Main characteristics of bit(cutting structure) | Hardfaced gage and all tooth surfaces, and the gage fitted with compacts for enhanced gage protection |
| Normal WOB KN/mm (bit dia.) | 0.35~1.05 |
| Rotary speed (rpm) | 300~80 |
| Payment terms | L/C, T/T, Western Union |
| MOQ | 1 Piece |
| Delivery time | within 7 days |
| Packing | carton, wooden box , steel box or as your requirements |
.Available models:
|
Steel tooth
(IADC)
|
111, 121,131
117,124,126,127,136,137
211,311
216,217, 227
|
|
TCI
(IADC)
|
415,435, 417,437
515,525,535,545, 517,527,537,547
615,625,635,,617,627,637,737
512,522,532,612,622,632,732
|