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8 3/4 Inches Steel Body PDC Bits with 16mm Cutters and 5 Blades for Soft to Medium Hard Formations, Find Details and Price about PDC Bit Drill Bit from 8 3/4 Inches Steel Body PDC Bits with 16mm Cutters and 5 Blades for Soft to Medium Hard Formations - Hebei Ruishi Bits Manufacturing Co., Ltd