Screwdrivers with adjustable handle
Adjustable
— a design that provides the ability to switch between straight and pistol or between straight and angled body shapes.For details on these construction types, see the corresponding paragraphs, and the specific method of switching between them and the specific application depends on the type of tool. So, the first option (straight / pistol) is found among screwdrivers and is implemented by turning the handle on a movable mount. The point of this adjustment is that the pistol grip gives a firm grip and is better suited for tasks that require high effort, while the straight body can be held with a "pencil" grip, which is not as reliable, but very comfortable for precision work.
In turn, the second option (straight / angular) is much less common. It is found in single models of drills and screwdrivers (see "Device"): such tools are equipped with a movable head part that can rotate up to 90 ° relative to the engine axis. This makes the tool more versatile, but significantly complicates the design, which led to low popularity.
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