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
FIGHTING TODAY AND TOMORROW
Air combat... the Popularity of this class has been and will remain unchanged. Let some say that today to do battle is not so "prestigious" — the whole world goes to RC vehicles, and...
OBEDIENT DRANK
I want to offer the simplest way to "tame" two-handed saws, no place have to work it alone. Everyone knows that while she is swinging and jammed. If its wooden top handles tough enough...
