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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CATAMARAN — ROTOR-SAIL
I want to tell readers about the catamaran, the movement is carried out with the help of Magnus effect. The Magnus effect is that when an airflow of the rotating body formed a force...
MINI PLANER
For processing small crafts of wood and plywood a very handy tool may be Rubanchik, which is easy to make yourself. The housing 1 (see Fig.) cut out of copper or bronze with a...
