In radio and electrical appliances are often the wire is passed in a hole made in the sheet metal. Sharp edges can break the insulation and cause a short circuit. Therefore, usually in the hole is installed a protective plastic or rubber grommet. Replace it with a home practice can tube of medical bottle: it is easy to make a hole with a hot metal rod and the edges to them — zavaliat.
Recommend to read
CATAMARAN “FISH” UNDER SAIL
In my amateur boatbuilding practice, it turned out that the small two-seater leisure catamaran "Ryba" is far from the first; I built it even later than the large four-seater tourist...
ALL FROM A JAR
The motorist in the garage is always served its plastic canister, and the house oborotnivka three - or five-liter flask from under the water, throw which is a pity. But you can convert...
