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  • 2019-01-10
    It is the screwdriver that is made up of the head handles. It is easy to prepare. It can be used as long as it is taken out. However, since the screws have many different lengths and thicknesses, it is sometimes necessary to prepare a lot of diffe...
  • 2019-01-10
    The Phillips and Phillips screwdrivers were invented by Henry Phillips in the 1930s. First used on the assembly line of the car. So Phillips and Phillips screwdrivers are also known as Philips screws and Phillips screwdrivers.
  • 2019-01-10
    A screwdriver is a tool used to twist a screw to force it into place. It usually has a thin wedge-shaped head that can be inserted into the slot or notch of the screw head - Beijing-Tianjin-Hebei Jin and Shaanxi-Shanbei and Yubei.
  • 2019-01-10
    Wrenches are basically divided into two types, dead wrenches and adjustable wrenches.
  • 2019-01-10
    Wrenches are a common installation and removal tool. Use the principle of leverage to twist bolts, screws, nuts, and other hand tools that hold the opening or socket firmware of the bolt or nut.
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