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.
Recommend to read
NOT ALWAYS AVERAGE “AVERAGE”
As we have noted, it is no wonder the leadership of the Soviet naval forces still in the early stages of their development in the 1920-ies turned his gaze exactly on submarines. Because...
CLIP-RETAINER
Hanging the trousers on the bar hangers can not be sure that they won't slide because are always in a state of some kind of "unstable equilibrium". To avoid this, the bar often hang the...