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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SIBERIAN WAGON
Offer readers acquainted with the original design of universal self-propelled tools, built by my brother Alexander. As he says (jokingly, of course), the idea of such a machine came to...
THE BEST PROPELLER FOR YOUR MODEL
Now, when the rules of the FAI, the weight of the rubber motor is reduced, and the number of rounds in the competition increased to seven, rotor group should be given maximum attention....
