Laterals at any angle, tees, wyes, crosses, elbows � any type or size of joint can be quickly and precisely laid out. ,Developed for use in the layout of large diameter pipe from 8� to 48� and structural seal joints, of the same size pipe. ,Built-in adjustable dial set level (DSL) ensures accurate center-line location. ,It can be used upside down or right side up. The protractor is calibrated on both sides � one in degrees and one in rise-inches per foot. ,Made from lightweight, rustproof aluminium for long wear. Frame folds into a compact tool that fits into a pocket or tool kit