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  2. Impact driver - Wikipedia

    en.wikipedia.org/wiki/Impact_driver

    A manual impact driver (for use with hammer) with screwdriver bits and adapters An impact driver is a tool that delivers a strong, sudden rotational force and forward thrust. The force can be delivered either by striking with a hammer in the case of manual impact drivers, or mechanically in the case of powered impact drivers.

  3. DeWalt - Wikipedia

    en.wikipedia.org/wiki/DeWalt

    For example, the DeWalt 20 V Max XR DCF888 impact driver has ToolConnect built natively into the tool whereas the DeWalt 20 V Max XR DCF845 impact driver has a slot to insert a ToolConnect chip should the user decide to add this connectivity after purchase. [12] [13] In May 2018, it released a line of 20 V and 40 V cordless lawn mowers. [14]

  4. List of screw drives - Wikipedia

    en.wikipedia.org/wiki/List_of_screw_drives

    Comparison between Phillips and Frearson. The Frearson screw drive, also known as the Reed and Prince screw drive, and specified as ANSI Type II Cross Recess, is similar to a Phillips but the Frearson has a sharp tip and larger angle in the V shape. [18] One advantage over the Phillips drive is that one driver or bit fits all screw sizes.

  5. Impact wrench - Wikipedia

    en.wikipedia.org/wiki/Impact_wrench

    A 1/2" drive pistol-grip air impact wrench. An impact wrench (also known as an impactor, impact gun, air wrench, air gun, rattle gun, torque gun, windy gun) is a socket wrench power tool designed to deliver high torque output with minimal exertion by the user, by storing energy in a rotating mass, then delivering it suddenly to the output shaft ...

  6. Robertson screw - Wikipedia

    en.wikipedia.org/wiki/Robertson_screw

    The internal-drive square socket for screws (as well as the corresponding triangular socket drive) had been conceived several decades before the invention of the Robertson screw and driver. An earlier patent covering both square-socket- and triangle-socket -drive wood screws, U.S. patent 161,390 , was issued to Allan Cummings of New York City ...

  7. Impact (mechanics) - Wikipedia

    en.wikipedia.org/wiki/Impact_(mechanics)

    Crane with a pile driver 1 ⁄ 2 in (12.7 mm) drive pistol-grip air impact wrench. A nail is pounded with a series of impacts, each by a single hammer blow. These high velocity impacts overcome the static friction between the nail and the substrate.