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SKW series bit
SKW series bit is non-sealed roller bearing bit .This is suitable for surface hole drilling for every kind of wells and upper sections with good drillability .It is with the advantages of low cost and high ROP ,ect.
SKW series bit
SKW series bit is non-sealed roller bearing bit .This is suitable for surface hole drilling for every kind of wells and upper sections with good drillability .It is with the advantages of low cost and high ROP ,ect.


