The tightening of a screw into a solid material gives a lot of trouble. Enough only slightly to tilt the screwdriver as that breaks down, sometimes cutting slot of the screw. To avoid this trouble will allow the following advice. Sharpen a screwdriver with a semicircular file or emery wheel — as shown in the figure. Work will become easier. A. BARANOV, Prokopievsk, Kemerovo region.
Recommend to read
THE CREATOR OF THE UNDERWATER “CHARIOTS”
Boats Holland, triumphantly marched around the world were not the sole representatives of overseas inventions in the field of underwater shipbuilding. Almost simultaneously, quite...
ERASE WITHOUT PRESSURE
Modern washing machines are in the process of Laundry is almost without the intervention of the hostess. She can only put the clothes in and pull it out after washing. Therefore, to...
