Factory sales 140mm PDC Combination Bit PDC Reaming Bit for Mining
Factory sales 140mm PDC Combination Bit PDC Reaming Bit for Mining

Factory sales 140mm PDC Combination Bit PDC Reaming Bit for Mining

Type: 144mm PDC combination bit The combined pilot-and-reamer design eliminates the separate reaming trip required by conventional two-stage drilling, reducing total hole time by 30-40% in formations at 40-100 MPa.

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