CARROLLTON, Texas--(BUSINESS WIRE)--Varel International, the leading independent manufacturer of drill bits and global supplier to the drilling industry, recently completed a massive 44” steel-toothed ...

A new tapered bearing assembly, developed specifically for roller-cone rock bits, significantly increased bit life for a Middle Eastern operator. This technology can help oil and gas customers avert ...

“Fishtail” drill bits became obsolete in 1909 when Howard Hughes Sr. patented the dual-cone roller bit. By pulverizing hard rock, the new bit with two rotating cones brought faster and deeper rotary ...

The American Society of Mechanical Engineers has named the Hughes Christensen Two-Cone Drill Bit as a Historic Mechanical Engineering Landmark. In an Aug. 10 ceremony at the Baker Hughes drill bit ...

Purpose: A drill bit converts surface energy (rotation, axial load, and drilling fluid power) into rock failure at the wellbore face, creating cuttings and deepening the hole. I.3 Energy sources at ...