
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
TRACTOR FROM CARS
Thanks for the favorite magazine, which can be prescribed and stored since 1976. Many articles and tips from it helped in the construction of improvised equipment or improve production....
GLASS TIGHTLY
The hour glass slipping from its frame, it is necessary in the edge of the recess on it gently to apply a little glue of type "Moment" and, setting the glass in place, gently loading it...