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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ROTATES FIELD
In a previous article under the heading "electronics for beginners" (see "M-K" № 8, 1979) we understand how magnetic field is formed it Turned out that, in particular, generates supplied...
Simple as can be, yet useful around the household
For a thrifty, handy owner, everything is always at hand. There may even be a homemade mini tractor, not to mention mowers-threshers and other motor and electric helpers. And this is quite...
