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
- SCRAPER ON A SNOW TRACK
In heavy snowfall the streets are cleaned by using high-performance snow removal equipment. But the janitors usually no mechanization have not, their only tool is a shovel. However, here... - EASY LACE TREE
On any country site, especially if it is located near the forest, have a special sense of closeness to nature. And perhaps that's why it is very natural and aesthetically pleasing looks...