3–12¼-Inch Tricone Rock Drill Bit

Description

The Tricone Rock Drill Bit uses three rotating cones to crush, scrape and break the formation as the drill string rotates. The roller-cone configuration supports efficient penetration and stable borehole development in water-well, mining, geological and other rotary-drilling applications. Sizes are available from approximately 3 inches to 12¼ inches, equivalent to about 76.2–311.2mm. The appropriate diameter should be selected according to the required borehole size and drilling-rig capacity. Depending on the selected configuration, the bit may be supplied with milled steel teeth or tungsten-carbide inserts for different formation conditions. Thread connections, bearing systems, sealing arrangements and IADC classifications vary between models and must be matched to the drill rig and geology. The manufacturer lists tricone bits for water wells, mining, geological surveys, geothermal drilling, oil and gas wells, horizontal directional drilling and foundation projects. Specification Details Product Type Tricone roller-cone rock drill bit Number of Cones 3 Available Diameter Range 3–12¼ inches Metric Diameter Range 76.2–311.2mm Drilling Method Rotary drilling Tooth Options Steel milled tooth or tungsten-carbide insert, depending on configuration Bit Classification IADC code selected according to formation Thread Connection API or model-specific connection Bearing Type Open, sealed or model-dependent Seal Type Rubber or metal seal, depending on configuration Suitable Formations Soft, medium or hard formations, depending on tooth and IADC selection Customisation Size, IADC code, thread and tooth structure may be configurable