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  2. Screw extractor - Wikipedia

    en.wikipedia.org/wiki/Screw_extractor

    Square flute screw extractors. Straight fluted extractors may come in a kit that also has associated drills, drill bushings, and special nuts, or be sold individually. 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 ...

  3. Harbor Freight Tools - Wikipedia

    en.wikipedia.org/wiki/Harbor_Freight_Tools

    Harbor Freight Tools won a declassification of the class action; that is, the court found that all the individual situations were not similar enough to be judged as a single class, and that their claims would require an individual-by-individual inquiry, so the case could not be handled on a class basis.

  4. Drill bit - Wikipedia

    en.wikipedia.org/wiki/Drill_bit

    Screw extractors are essentially left-hand bits of specialized shape, used to remove common right-hand screws whose heads are broken or too damaged to allow a screwdriver tip to engage, making use of a screwdriver impossible. The extractor is pressed against the damaged head and rotated counter-clockwise and will tend to jam in the damaged head ...

  5. Irwin Industrial Tools - Wikipedia

    en.wikipedia.org/wiki/Irwin_Industrial_Tools

    Irwin Industrial Tools is an American manufacturer and distributor of hand tools and power tool accessories. It is owned by Stanley Black & Decker . It is best known for producing Vise-Grip locking pliers .

  6. Sharpening - Wikipedia

    en.wikipedia.org/wiki/Sharpening

    Special tools and skills are more often required, and sharpening is often best done by a specialist rather than the user of the tool. Examples include: Drill bits - twist drills used for wood or steel are usually sharpened on a grinding wheel or within a purpose made grinding jig to an angle of 60° from vertical (120° total) although sharper ...

  7. Hughes Tool Company - Wikipedia

    en.wikipedia.org/wiki/Hughes_Tool_Company

    This included the drill bit (well) and tool joint product lines critical for oil and gas drilling, some of the first technologies for ram blast bits for drilling in mines, geothermal drilling, and a hydraulic powered jackhammer known as the Hughes Impactor. [7]

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