What is Allan? What are the features?

Allan suggests that the idea of ​​a hexagonal socket screw is available from 1860s to early 1890s, but such screws are probably not produced until 1910. Since stainless steel is used for these quality tools, there will be no problem with rust. If you notice rust on the surface of the tools, this is used to turn screws and bolts made of normal steel. The applied pressure inevitably leaves behind the traces or particles of normal steels on stainless steel and rusts when exposed to oxygen.
PROPERTIES
The vehicle is simple, small and light. The contact surfaces of the screw or bolt are protected from external damage. The tool can be used with a headless screw. The screw can be inserted into the hole using the wrench. Very small bolt heads can be accommodated.
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