Popular wisdom says: "Look before you leap", and, in spite of the fact that this saying is perceived only in allegoric sense for a long time, it still does not lose relevance and in literal.
The person began to use in various ways of measurements for a long time, beginning from elbows and knees, and then rulers and arrow measuring devices, and to modern control and measuring tools.
The measuring tool is used not only in various processes of production and construction, but also at the household level: the ruler, a roulette, a square, construction level and a caliper is having honored each house. Good measuring tools allow to make any measurement quickly and precisely.
The list of professional control and measuring tools is rather wide, but a row from them find continuous application and in usual houses where construction, repair or improvement of comfort of the house is conducted.