Tool to measure the angle between two walls, to set the cutting angle of tiles or bars to fit into the corner, has linked struts forming a quadrilateral and an elastic bisection angle indicator between two strut junctions

摘要

The tool (1) to determine the angle between two walls, to set the angle to be cut when laying tiles or cutting the angled ends of butting bars, has a unit (8) to show the bisection of the wall angle. The tool can have at least four struts (2-5) with links (6) at their junctions (7) to form a rectangle. The bisection indicator is an elastic strip between at least two strut junctions, to transfer an angle to a saw. The struts are of wood, metal or plastics.