This simple device will help with the help of ordinary hand drills to cut holes of any diameter in the plywood, hardboard and particleboard.
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THE BIKE CHANGES SHAPE
Not the first time the editors publish original contributions on the improvement of the Bicycle, the author of which is an inventor, engineer Vladimir Gavrilov from the village of...
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Easy to fly model aircraft. I want to offer young readers with "M-K" unpretentious three models, the design of which worked at the Center for Children's technical creativity of the city...
