1.More suitable tooth type,bearing structure, sealing type and angle of inclination of paws.
2.More protection teeth on the roller cutters.
3.Perfect welding process prevents the damage to sealing and bearing system because of over beat.
4.Fully heat-treated alloy steel.
5.Professional engineers design hole opener for your drilling environment
It is suitable for the trenchless,no-dig,horizontal directional drilling(HDD), large size well,mining and infrastructure applications etc.
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