Abstract: The invention relates to a folding rule (G) which comprises at least four sections (1, 2, 3, 4) that are hinged together, at least the fourth section (4) having two scales (SK1, SK2) for angle measurement and the first section (1) having at least one reading mark (M). The first scale (SK1) for angle measurement and the reading mark (M) are located on the respective section (4, 1) such that the reading mark (M) points to the value of the first scale (SK1), which corresponds to the angle (?) to be measured between the sides (O1, O2) that rest on the second section (2) or on the fourth section (4) when the first section (1) and the fourth section (4) are aligned in parallel and a first lateral edge (1.1) or a second lateral edge (1.2) of the first section (1) rests on a first lateral edge (4.1) of the fourth section (4).

Abstract: A folding rule including at least three links that are pivotably fastened to each other, at least one of the links has a scale for measuring the diameter of objects, the scale is designed in such a way that, when the object is completely enclosed by three adjacent links wherein the insides of the three links are each in contact with the object, a specified region of one of the links is in contact with the scale and a respective contact point on the scale indicates the diameter of the object.

Abstract: The invention relates to a folding rule (G) which comprises at least four sections (1, 2, 3, 4) that are hinged together, at least the fourth section (4) having two scales (SK1, SK2) for angle measurement and the first section (1) having at least one reading mark (M). The first scale (SK1) for angle measurement and the reading mark (M) are located on the respective section (4, 1) such that the reading mark (M) points to the value of the first scale (SK1), which corresponds to the angle (?) to be measured between the sides (O1, O2) that rest on the second section (2) or on the fourth section (4) when the first section (1) and the fourth section (4) are aligned in parallel and a first lateral edge (1.1) or a second lateral edge (1.2) of the first section (1) rests on a first lateral edge (4.1) of the fourth section (4). 2.

Abstract: A folding rule including at least three links that are pivotably fastened to each other, at least one of the links has a scale for measuring the diameter of objects, the scale is designed in such a way that, when the object is completely enclosed by three adjacent links wherein the insides of the three links are each in contact with the object, a specified region of one of the links is in contact with the scale and a respective contact point on the scale indicates the diameter of the object.