In the holes drilled in a wooden tube in the concrete wall, there is always a lot of sand and dust. To remove them will help plastic or metal tube by simply inserting it into the hole and how to blow into it (but mind your eyes!).
S. DOROFEEV, p. vokhtoga, Vologda region.
Recommend to read
UNIVERSAL MICRO
The machine is attractive for its versatility. It must be equipped with protective devices. Over the slot in the table it is necessary to install a height-adjustable pressure roller....
CAMERA… OUT OF NOTHING
Is it worth to reinvent the wheel? Readers of our magazine have long been convinced that it is worth. Example to the materials published in recent years in our magazine, spoke about the...
