
You can, of course, brush them, however this will not last long. More radical means of plastic washer embedded between the half-loops.
There is another way to get rid of the squeak. You need to shorten rod one half loop and put the loop inside a steel bearing ball.
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If in your workshop or garage is no place to neatly place the tools fix the spring clamps on the folding shelf. In the off position, the tool locks firmly turntable or special latches...
AND A HAIRBRUSH,AND RULER
To eliminate the need to carry a ruler or tape measure, apply a linear division on the comb, which is always in my pocket. N. TURULIN, Taganrog