rotary drilling rig T C I Tricone Rock Bits (8 1/2" IADC637)
Maximum ROP Running durable and extended bearing life Safety and reliability High quality and competitive price Additional Info.
| DZ |
| Plywood Case or as Requirments |
| API Spec 7 & ISO 9001:2008 |
| China |
| 300 PCS/Month |
Sizes from 3 7/8" to 26" Covers almost all IADC codes. Stocks adequate&timely delivery Good quality and after-sale service 30 years experience in drill equipment Please specify the following items as many as possible in enquiry: Bit diameter IADC code Bearing type Drilling formation Drillig depth
| Size | 8 1/2” (215.9mm) |
| IADC | 617 |
| Bearing Type | Elastomer-sealed journal bearing |
| Thread Connection | 4 1/2 reg pin |
| WOB(KN/mm) | 0.45~1.1 |
| RPM(r/min) | 90~50 |
| Applicable Formations | Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc |
| Circulation system | Mud pump |
rotary drilling rig T C I Tricone Rock Bits (8 1/2" IADC637)
