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
LONG LIFE MOTOR
In such technical sports, such as motorcycle, automotive, karting, and beginner athlete and the more experienced master in competition or in training often have to drop out of the race...
SIEVE… FROM THE SUN
The sun is always a welcome guest. Both in the city and especially when going out for country recreation. But sometimes you want to get away from guests too. From the sun as well, when...
