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
COMPACT GEARBOX — PNEUMATIC
Pneumatic large diameter low pressure tyres are good drivers of all-terrain vehicles in even the harshest of road conditions. But, working with modern highspeed engines, they require...
IN THE CENTER — SNIPER
Like in the "bullseye" target, to get to the center of the end face of the cylindrical body of rotation help simple tool, consisting of only two parts. They can make plastic, metal or...
