Drill Bit

详情

These are rich and diverse roller bits to meet different requirements of formations and rotary speeds. Rubber sealed and metal face sealed bearing bits. Center nozzle is equipped for bits of larger sizes. All bits are lubricated by new type of wear resistant grease and can sustain high temperature up to **0° C. The surfaces of main parts are hard faced and treated with friction reducing technology. They can enhance gage protection and prolong the services life of bit. The sizes of the gage diameter and the types of bit are strictly designed in accordance with the standard API SPEC 7, with the certificate of authority to use the official API monogram.