There is a reliable way to check the quality of sharpening cloths or disk saws. Light a candle and hold the flame on the teeth. This should be done evenly and quickly without overheating the metal. If one of the teeth when sharpening, you missed the flame in this place will be Smoking. Mark in patches of soot on the steel surface, clearly indicates poorly sharpened teeth.
Recommend to read
GLIDER WITHOUT SECRETS
"Fly higher, farther, faster!" This aircraft is the slogan became the motto of hang gliders. In our picture the glider master of sports M. B. Gokhberg. The front part of the dome is...
THE MINELAYER MARTI
THE MINELAYER MARTI. Scale model 1:200. Create a mine layer "Marty" is a remarkable page in the history of our fleet and is a true success in the creation of ships of this class. He...
