If the empty tube of toothpaste to fill the rear end with petroleum jelly or machine oil, and the tube to make a hole and feed it through the rod from a ball pen, as shown in the figure—get a convenient oil can to lubricate the parts in hard to reach places small mechanisms — such as alarm clocks or electric razors.
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Manufacturer of air screw requires special precision and accuracy. The proposed device will greatly facilitate your work: processing of the pressure surface of the screw with sufficient...
