Multipurpose square for marking, checking horizontal and vertical surfaces and measuring the inclination of a plane is for use in building, carpentry and DIY has two thick legs, which are partially filled with liquid

摘要

Device for marking, checking horizontal and vertical surfaces and measuring the inclination of a plane comprises a transparent plastic square (1), the legs of which have a middle longitudinal line (8) marked on them together with graduations (9) on both the length of the legs and their ends. A neutral intersection (4) of the branches has circles marked on both sides with markings in degrees. A liquid levels out in the two branches indicating the inclination of a plane.