7 7/8 (200mm) IADC217 Mill Tooth Drill Bit Cone For Medium Hard Formations

7 1/2 (190.5mm) Tungsten Carbide Mill Tooth Drill Bit Well Mining Thermal Petroleum Drilling

4 5/8 （117.5mm）Tricone Tools Roller Bit Tricone Drill Bits For Foundation Oil Well Drilling Construction

11 5/8 (295.3mm) Medium Hard Formations Mill Tooth Drill Bit For Construction Works

11 (279.4mm) Cone Mill Tooth Tricone Bit high efficiency for Well Drilling

10 5/8 (269.9mm) Roller Bearing Mill Tooth Drill Bit IADC 126 For Energy Mining

9 5/8 (244.5mm) Construction Works Energy Mining Mill Tooth Drill Bit Roller Bearing

5 7/8 (149.2) Roller Bearing Mill Drill Bits For Long Lasting Performance

6 ( 152.4mm) Customized Grinding Drill Bits For Sale, Factory Manufactured High-Quality Petroleum Drill Bits

12 1/4 (311.1mm) Customization Mill Tooth Drill Bit High Compressive Strength

10 (254mm) Precise Milling Bits For Drill Press Carbide Milling Machine Drill Bits

4 3/4 (120.6mm) Product Showcase Mining Tci Tricone Rock Drill Tricone Single Cone Bit Delivery On Time

9 7/8 (250.8mm) Oil Well Mining Milling Bit In Drill Press Cone Shape IADC code

6 1/4 (158.8) IADC127 Mill Tooth Bit Drilling For Water Oil Gas Well Api Iso

Medium Hard Formations With High Compressive Strength Milled Toothed Drill Bits

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Tricone Drill Bits