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140mm 171mm 3 Blades Scraper Carbide PDC Drag Drill Bit - Scraper Carbide Drill Bit and PDC Drag...
140mm 171mm 3 Blades Scraper Carbide PDC Drag Drill Bit, Find Details and Price about Scraper Carbide Drill Bit PDC Drag Drill Bit from 140mm 171mm 3 Blades...
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Heavy-Duty Three-Wing Drill Bit for Tough Scraping Tasks - Three-Wing Drill Bit and Drag Drill Bit
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