
To measure the thickness or diameter of small fasteners do not have to have a caliper: rescue improvised version of conventional clothespins. It is sufficient to attach the metal plate coated with graduations as shown in the figure.
I. KORENEV, Korolev, Moscow region
Recommend to read
DWARF SUBMARINES OF HER MAJESTY
British military shipbuilding has centuries-old experience of development and combat use of the most advanced designs and technologies. On the eve of the Second world war-the British...
THE DRILL OF DRILLS
I'm probably not mistaken saying that the majority of home handymen's dream is to have a universal bormashenko. How many opportunities it opens! Engraving, abrasive machining of parts of...