Abstract: A multifunction, multipurpose construction tool comprised generally of two operating arms pivotally connected via their terminal ends, preferably their rounded terminal ends, one to the other, an angle indicator being provided at the pivotal connection, or hub, for reading the angle formed by the two arms. A pair of alternately disposed abuttments are located at the extremities defining the rounded end of one of said arms as well as the beginning and end of the scale of angular component values of the scale. A stop located on the rounded terminal end of the other pivotally connected arm provides a means for indexing the scale of angular values between said alternately disposed abuttments.