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Hughes Sr., Howard Robard

Hughes Two-Cone Drill Bit
Society: ASMEMain Category: MechanicalSub Category: Minerals Extraction & RefiningEra: 1900-1909DateCreated: 1909Baker HughesThe WoodlandsState: TXZip: 77380Country: USAWebsite:, Hughes Sr., Howard Robard

Prior to 1909 the traditional fishtail bit scraped the rock and quickly dulled in service. The Hughes two-cone bit's revolutionary rolling action crushed hard-rock formations with twin cone-shaped, hardened steel bits, each with 166 cutting edges, revolving on bronze bearings shaped to provide a large surface with reduced friction.

Image Credit: Courtesy ASMEImage Caption: Hughes Two-Cone Drill BitEra_date_from: 1909
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