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8.5 Inch 215.9mm Matrix Body PDC Bit M1365fgrs for Rss Oil Drilling. Adopts double-row cutter layout, greatly boosting the bit's wear resistance and structural stability. Matrix body forged from premium tungsten carbide alloy powder, featuring superior anti-abrasion performance. Equipped with short bit sub, it shortens the distance between RSS and PDC bit for faster steering response. Equipped with 13mm large-diameter PDC cutters & 6 blades, ideal for medium-hard formation directional well drilling.