Water Well Drilling Drag Bits 5 7 8.5 9 10 11 12 13 Inch Step Bit Step Drag Bit In geological drilling and water well construction, "dragging" is commonly used to describe a cutting method of PDC (Polycrystalline Diamond Composite) drill bits, which involves "scraping" or "shearing" rocks, rather than traditional impact crushing. Technical features: Cutting mechanism: relying on the PDC teeth on the drill bit body, embedded in the formation under the action of drill
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