[Construction - Section 91]
MULTI-FUNCTION TOOL
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A multi-function tool is a mostly in the pocket or on the pants belt portable tool that many different tools in a single easy-to-grip handle, or in the form of a credit card. Wide spreads are multi-function tools of the various brands and the manufacturers.
Quite different tools (e.g. knives, tweezers, pliers, magnifying glass, screwdriver), the Swiss Army Knife combined.
INNER HEXAGON SCREW AND THE KEY
This is a screw type with its inner hexagon in the screw head sunk. By compared to a conventional screw improved power distribution can be a socket screw around ten times the torque. Compared to a conventional screw with key external hexagon is less space required for the head, but no activity from the side with a key mouth.
Hexagonal socket screws are good for screw connections, in which the screw heads construction are difficult to access. When it reaches hexagonal socket screws, if the head from above, such as through a hole, its diameter is larger than the corner of the key measure is to be achieved.
With keys, a so-called ball approach, can the screws even then attract and solve, if the key set is that it is consistent with the axis of the screw shaft is not. Hexagon socket screws can be space-saving sink if protruding bolt heads disturbing.
Hexagonal socket screws are inexpensive and compact in its dimensions. Therefore, maintenance and operator of machines such a sentence also contribute to the body to quickly intervene. Moreover hexagonal socket screws can easily extended with a cane, in order to better suit moments. These properties make the hexagonal socket screw therefore preferred to screw in special machines.
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