Of tubes of different diameter, tightly placed one on another, you can build a jig for drilling end holes in cylindrical rods of various cross sections. For the outer bushings are better to use a steel tube with a thickness of 0.5 mm, and the inner insert can be bent any sheet metal. V. MARTINTON, Novocheboksarsk
Recommend to read
“Butterfly” on the waves
The ultra-light international Moth class dinghy — the “Moth” (fig. 1, 2) is simple in design, easy to build, and possesses all the most important qualities of a racing boat — it is fast,...
IF THE FUSE BLOWS
When a fuse opens in the apartment is a nuisance, but when this happens in the car — it is almost a tragedy, of course, if there is no spare. Meanwhile, to restore this simple appliance...
