Shanxi New Rotary Drilling Roller Cone Bit Leg

Shanxi New Rotary Drilling Roller Cone Bit Leg

Product Information  

　　Specification 8 1/2, model 637, used for roller cone barrel drills in pile foundation construction, with reinforced wear-resistant gauge protection to extend drill bit service life, high-temperature-resistant rubber sealed bearings, enlarged cone body, full-coverage tooth arrangement for longer service life, adopts 14mm conical teeth for fast penetration and strong wear resistance, suitable for drilling in hard rock up to 120 MPa