If you need to drill through wall, out the other side exactly in the right place — use…a compass.
Of course, in collaboration with the magnet, which should be put behind the wall just at the desired point: it will show the compass needle.
Recommend to read
ONE OF THE KV SERIES
“...Earth was a dull rumble, and on the outskirts of the village of Sitno seemed huge armored vehicles unusual bright yellow color. Glistening tongues of shots, they were slowly sliding...
“HYDRO-N” FROM SWEDEN
The popularity of not so long ago, the class of boat Hydro n today remains very high. In some Western countries, interest in new high-speed gliders eclipsed hobby other RC models. It's...
