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Customizable 105mm 4-Blade PDC Drill Bit Flat Top PDC Bit for marble


Type: Customizable 105mm 4 Blades PDC drill bit 105mm 4-blade PDC drill bit. 2.5-4.5 m/min in sandstone. 20% faster than 3-blade. Under 0.5 deg deviation. Water-well and mining use.

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