8 1\2' kingdream rock bit

8 1\2' kingdream rock bit

Product description:

Quick Details

  • Place of Origin: Hebei, China (Mainland)
  • Brand Name: Fist bit
  • Model Number: tricone bit
  • Type: IADC code 537G
  • Material: Tungsten Carbide, tungsten carbide
  • Use: well drilling; oil field
  • colour: blue/ yellow/ golden
  • bearing: metal sealed bearing; rubber sealed bearing
  • Certificate: API or ISO 9001
  • bit size: 8 1/2 2159mm
  • bit price: FOB 800$/ pcs
  • Bit IADC code: Bit IADC code 537
  • payment term: TT/ L/ C
  • delivery term: shipping/ air
  • diacount: mainland delivery is free charge

Packaging & Delivery

Packaging Details: wooden box; steel box; or as your requirements
Delivery Detail: within 7-15 work days


1-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.

Product advantage:

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:


4, Certificate:

5, we can provide more size

Steel tooth


111, 121131



216217, 227



415435, 417437

515525535545, 517527537547

615625635; ; 617627637737


6, Transport

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!!!