supply brand new Kingdream HJ series steel tooth bit/tricone bit

As the professional supplier of rock bits in China,we can supply all kinds of rock bits,such as PDC bits,TCI bits,rock bits,tricone bits,single cone bits,hole opener,steel tooth bits,insert tooth bits,drag bits,etc.

Design features of this steel tooth bit

1) Metal face sealed journal bearing  

HJ series bit uses journal bearing and metal face seal; it can perform consistently in high speed drilling application.

2) Special gage protection on cone

A row of trimmers is added between heel row and gage row compacts. As a result, not only cone shell is protected, but also the borehole wall is properly trimmed.

3) Head OD reinforcement

Head OD are designed with carbide inserts to protect the shirttail and seal to effectively improve the bit’s ability to prevent diameter shrinkage.

4) Hardfacing on shirttail

This feature can provide better protection for seal and bearing to extend the bit’s service life.

5) Center nozzle

Center nozzle can avoid bit balling, eliminate fluid stagnant area at bottom hole, increase rising velocity of drilling cuttings, and improve ROP, which is suitable for drilling formations from soft to middle soft with low compressive strength and high drillability.