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4 1/4 'īniha PDC Drag Bit 3 Blades
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6 1/2 iniha PDC step drag bit 3 Blades no ka wili luawai paakiki
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API 5 5/8 iniha PDC Drag Bit 3 Blades no ka hoʻokumu paʻakikī
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Ke kumu kūʻai haʻahaʻa API 6 ʻīniha PDC step drag bit 3 ʻēheu i ka waihona
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hale hana API o 4 5/8 iniha PDC kauo wili me 3 Blades
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152mm step drag bit 3 blades no ka huli honua
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ʻO ke kumu kūʻai haʻahaʻa 360mm step drag bit 3 blades no ka hana paʻakikī
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6 ʻīniha PDC Drag Bit 4 ʻēheu no ka wili luawai paʻakikī
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AP 98mm step drag bit 3 Blades no ka wili wela wela
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API 152mm PDC concave rock bit 4 Blades no ka wili luawai
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9 7/8″ tungsten carbide PDC Drag Scraper Bit 3 Blades
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4 1/2 'īniha PDC Drag Bit 3 Blades no ka wili ʻana o oilwelll