RIGHT IN THE MIDDLE

If you want to cut the pipe lengthwise into halves, it is necessary to outline its diametrical plane. It’s easy to do and without any measuring devices by using a sheet of paper. Attaching it to the end of the pipe and outlining a circle with a pencil, then cut out the circle and fold in half. Now it is enough to make the paper semi-circle again to the face – bend will show exactly the line of the longitudinal section of the pipe.