1.Size:2 7/8" (70.0mm)~26" (660.4mm); 2.Cover all all IADC code;
3.Reliable quality and best price
4.tungsten carbide insert tricone bit; 5.certified by ISO,API;
4.tungsten carbide insert tricone bit; 5.certified by ISO,API;
6.high efficiency;
Advantages of tci bits;
1.Suitable for medium to medium hard formation of high Crushing Resistance(hard shale,sands,etc.) ;
2.Bit bearing is non-sealed roller bearing.
