Sometimes the drills, especially in the already served, without distinction, the marking indicating the diameter. It would seem that to define it is only possible with a micrometer. But here’s a simple and fairly accurate method of measurement with… grip. Drill clamped in their jaws, and remaining between them a gap corresponding to the diameter of the already available ordinary ruler with millimeter divisions.
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ELECTRIC VEHICLE “IVOLGA”
"Oriole" — so I called built for the son of the electric car. The design idea came to me about two years ago, and much credit for this journal "modelist-Konstruktor". Several months of...
THE THREAD IS STRONGER
Wooden handle chisels, drill bits and other tools do not crack from impact, they stuffed a metal ring. Over time, however, the density of planting is reduced: bandage jumps. It may even...
