In construction you often have to deal with the internal measurements. For example, to determine the distance between the form panels, the value of the window or doorway. A good assistant in such cases would be sliding ruler, made of tube and metal rod with applied risk. V. ANTIPIN
Recommend to read
THE CUTTER OF THE NAIL
If you want to cut plywood circular disk or to cut a hole in it large diameter, it is not necessary to have a special cutter or a jig saw. Take a wooden bar and two grozda. One beat...
SCHOOL AIRCRAFT
You decide to build an airplane. And immediately before you the first issue - what will it be? Single or double? Often it depends on capacity of the engine, availability of necessary...
