|[Tools & Equipment] - [Drilling Tools] - [Drill Bit]|
8 1\2' kingdream rock bit
Packaging & Delivery
Specifications1-Bit API or ISO 9001
2-Bit size 8 1/2 2159mm
3-Bit rubber&metal bearing
4-Bit 800$ -850$/ pcs
5-Bit IADC code437G-737G
1, Structure features:
1. Rolling seal bearing structure, cylindrical roller cone in slots in the body, increasing the shaft neck size.
2. Thrust bearing vice respectively by grinding surface treatment and hardening process.
3. The differential pressure and prevent drilling fluid restrictions in the lubricating system all rubber oil storage sac, for bearing system provides good lubrication guarantee.
4. Steel ball lock die, suitable for the high speed.
5. The 250 ° C high temperature resistance, abrasion resistance of new grease.
GA series bit for O form rubber sealing roller bearing drill bits; low pressure for the high speed drilling drilling; it is an ideal and economic tools
2, details pictures:
5, we can provide more size
7, Payment terms
T/ T and L/ C are acceptable. (30% advanced payment after sign the contranct , then 70% payment after see the B/ L)
8, contact person
Its our pleasure to serve for you , we will be grateful if you could give us more good advance!!!