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  2. Benjamin Forstner - Wikipedia

    en.wikipedia.org/wiki/Benjamin_Forstner

    The bit was revolutionary as it did not feature the lead screw (which Forstner called the "gimlet-point") or the cutting lips of more conventional wood boring bits, [clarify] and thus proved especially useful to gunsmiths and high-end woodworkers. The bit was unsurpassed in drilling a smooth-sided hole with a flat bottom.

  3. Gimlet (tool) - Wikipedia

    en.wikipedia.org/wiki/Gimlet_(tool)

    A gimlet is a hand tool for drilling small holes, mainly in wood, without splitting. It was defined in Joseph Gwilt's Architecture (1859) as "a piece of steel of a semi-cylindrical form, hollow on one side, having a cross handle at one end and a worm or screw at the other". [1] A gimlet is always a small tool.

  4. Self-tapping screw - Wikipedia

    en.wikipedia.org/wiki/Self-tapping_screw

    Self-tapping screws can be divided into two classes: [3] those that displace material (especially plastic and thin metal sheets) without removing it, known as "thread-forming" self-tapping screws, and self-tappers with sharp cutting surfaces that remove the material as they are inserted, termed "thread-cutting" self-tapping screws.

  5. Drill bit - Wikipedia

    en.wikipedia.org/wiki/Drill_bit

    The gimlet bit is intended to be used in a hand brace for drilling into wood. It is the usual style of bit for use in a brace for holes below about 7 mm (0.28 in) diameter. The tip of the gimlet bit acts as a tapered screw, to draw the bit into the wood and to begin forcing aside the wood fibers, without necessarily cutting them.

  6. Drill - Wikipedia

    en.wikipedia.org/wiki/Drill

    The auger uses a rotating helical screw similar to the Archimedean screw-shaped bit that is common today. The gimlet is also worth mentioning as it is a scaled down version of an auger. Archimedes' screw, present in drills to remove perforation dirt from the hole, was invented in Hellenistic Egypt around 300 BCE. [10] [11]

  7. How oil emerged as a central sticking point in the Trump ...

    www.aol.com/finance/oil-emerged-central-sticking...

    The market anxiety ahead of Donald Trump's tariffs deadline focused Friday on oil and gas after the president acknowledged there could be issues including the energy staple in his overall plans.

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