
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
YOUR BEST SCREW
Unfortunately, experience manufacturing propellers for the Amateur designs with rare exceptions not worth repeating. And perhaps the main cause of failures in the inconsistency of the...
SEDENTARY PULL-UP BAR
Two or three intense strength exercise can be more effective prolonged light exercise. The DPJ is this a good bar or bars — shells, clearly not intended for the apartment. However, they...