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2. Hughes Tool Company - Wikipedia

   en.wikipedia.org/wiki/Hughes_Tool_Company

   Today, the site of the building is on the campus of University of Houston–Downtown. A February 1914 advertisement for the Sharp-Hughes Tool Company in Fuel Oil Journal. Hughes Tool Company was an American manufacturer of drill bits. Founded in 1908, [1] it was merged into Baker Hughes Incorporated in 1987.

3. List of tool manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_tool_manufacturers

   Manufacturer Headquarters Brands Products Altendorf GmbH: Minden, Germany: Altendorf: Table saws, panel saws: Andreas Stihl AG & Company KG: Waiblingen, Germany: Stihl, Viking [1]: Outdoor power equipment [2]

4. Howard R. Hughes Sr. - Wikipedia

   en.wikipedia.org/wiki/Howard_R._Hughes_Sr.

   Howard Robard Hughes Sr. (September 9, 1869 – January 14, 1924) was an American businessman and inventor who founded the Hughes Tool Company. He invented the "Sharp–Hughes" two-cone rotary drill bit during the Texas Oil Boom. Hughes was the father and namesake of Howard Hughes (Howard Robard Hughes Jr.) the American business tycoon and ...

5. Baker Hughes - Wikipedia

   en.wikipedia.org/wiki/Baker_Hughes

   Each time, Hughes asked the drilling crew to leave the rig floor, pulled the bit from a locked wooden box, and then his associates ran the bit into the hole. The drill pipe twisted off on the first test, but the second was extremely successful. Following these successful drill bit tests, the partners founded the Sharp-Hughes Tool Company in 1909.

6. Watts Brothers Tool Works - Wikipedia

   en.wikipedia.org/wiki/Watts_Brothers_Tool_Works

   Watts Brothers Tool Works. Watts Brothers Tool Works is a tool manufacturer located in Wilmerding, Pennsylvania. They are known for manufacturing drill bits that can drill square holes, [1] [2] including blind holes, which cannot be made with other methods such as broaching. The Harry Watts square drill bit is based on a Reuleaux triangle shape.

7. Drill bit shank - Wikipedia

   en.wikipedia.org/wiki/Drill_bit_shank

   Drill bit shank. The shank is the end of a drill bit grasped by the chuck of a drill. The cutting edges of the drill bit contact the workpiece, and are connected via the shaft with the shank, which fits into the chuck. In many cases a general-purpose arrangement is used, such as a bit with cylindrical shaft and shank in a three-jaw chuck which ...