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  2. Screw extractor - Wikipedia

    en.wikipedia.org/wiki/Screw_extractor

    The screw is drilled out with the appropriate drill and drill bushing. The extractor is then hammered into the hole with a brass hammer, because a steel hammer is more likely to cause the extractor to break. The appropriate special nut is then attached to the end of the extractor. The nuts can then be turned with a wrench to remove the screw. [1]

  3. US-1 Trucks - Wikipedia

    en.wikipedia.org/wiki/US-1_Trucks

    There were also three Plastic Construction Kits: a Mobil Truck Station, a Howard Johnson's Truck Stop, and a 'P.I.E. Freight Terminal', each molded in several colors to be glued together. These were supplied by Pola, West Germany and were also sold for a time as part of the Tyco model railroad range, but in plain Tyco 'Brown Box' packaging ...

  4. Pipe recovery operations - Wikipedia

    en.wikipedia.org/wiki/Pipe_recovery_operations

    Key seating occurs when the drill string becomes off-centered in the wellbore, and the pipe collars become caught on a deviation in the wellbore. If the rig is able to move the drill string freely downhole, but every time the drill string is pulled upward it becomes stuck at the same point, then it is likely that the pipe is caught in a key seat.

  5. List of railroad truck parts - Wikipedia

    en.wikipedia.org/wiki/List_of_railroad_truck_parts

    An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.

  6. Coiled tubing drilling - Wikipedia

    en.wikipedia.org/wiki/Coiled_tubing_drilling

    Coiled Tubing Drilling (CTD) is a drilling method that combines coiled tubing and directional drilling. [ 1 ] [ 2 ] It uses a mud motor to create a system for reservoirs. [ 3 ] [ 4 ]

  7. Tube tool - Wikipedia

    en.wikipedia.org/wiki/Tube_tool

    Tube Tools can be categorized into function by application: Tube Cleaners-tube cleaning demands vary widely by application Shell and tube heat exchangers, condensers and chillers: Deposits are typically sediment from impurities in the water circulating through the tubes. Manual scrubbing with a wire brush attached to a long rod is the ...