If the head of the screw to give with the help of nalilsya the form shown in the figure, then any attacker will not be able to turn. On such hardware it is recommended to set sensible things sailing and motor boats, hook locks.
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REINCARNATION (su-7 to su-7БКЛ)
During the Second world war in the West, fighters, modified to destroy ground targets, became known as fighter-bombers. After the war they were further developed. This contributed to a...
THE CONDUCTOR-THE COMPASS
Drill without marking the large diameter hole allows this simple fixture. The pilot hole on the end of a piece of wood-a compass will not allow the drill nor "collapses" in the direction...
