Rock bits

1 The drill guide is good.
2 Paul diameter spiral arc cutter wing.
3 Stability and strong ability to drill cutting
) supply new and junk drill bits,pdc bits,tci bits,tricone bits,rock bits.
2)steel tooth bits,drill pipe,scrap drill bits,junk drill bits,scrap tricone bits,junk tricone rock bits,new rock bits,scrap pdc drill bits, rerun steel tooth bits,surplus stabilizers,used drill bits stock,used mud pumps
3)resonable price, considerate service, on-time delivery