Drill bits
Time:2016/11/06 Traffic:
Tricone bit: tooth type divided into steel tooth and insert, rubber seal, seal can be divided into metal seal and rolling bearing seal and not seal, drilling and ordinary bit speed into high speed motors.Through the rolling and cutting in order to achieve the effect of the drilling.
PDC bit: by grinding and cutting in order to achieve the effect of drilling, usually used in high hardness of grinding formation.
PDC bit: by grinding and cutting in order to achieve the effect of drilling, usually used in high hardness of grinding formation.