Product No.4030
Posted under: 
Three-cone insert bit
The bit adopts sliding bearing metal seal, which can drill stably at higher speed.
Bit size range 4 5/8——26Inch,
IADC code：417-437-517-527-537-617-637
Structural features:
Metal seal for sliding bearing. Implement the new technology of surfacing hard alloy layer on the surface of the tooth palm shaft and silver plating on the inner hole of the tooth tooth to improve bearing capacity, anti-bite ability and stability.
The series inserts are equipped with spoon, die, cone and double ball teeth. Reasonable selection of tooth shape, to achieve effective combination of drilling technology and formation and bit, to achieve safe and efficient drilling.
A row of protection rollers and dressing shaft wall tooth rows are inserted between the outer row teeth and back cone teeth of HJ series drill bits to form a unique HJT series drill bit.