Clamping tool with a) a clamping bar, b) a clamping lever, c) a bearing body, on which the clamping lever is mounted to be pivotable around a pivot axis and which is displaceably guided in the clamping bar, d) the bearing body comprising at least one convex clamping-lever bearing surface and two clamping-bar bearing surfaces (30a, 30b), where the at least one convex clamping-lever bearing surface is arranged between the two clamping-bar bearing surfaces (30a, 30b), e) the clamping lever comprising at least one concave bearing surface and f) the clamping lever being mounted to be rotatable around the pivot axis on the convex clamping-lever bearing surface of the bearing body via the at least one concave bearing surface and the bearing body being displaceably guided in the clamping bar via the clamping-bar bearing surfaces, g) where the bearing body is inserted into the clamping lever in the direction of the pivot axis, h) the clamping lever comprises at least one opening, which is realised with a closed edge in a cross section transverse to the pivot axis and forms the concave bearing surface via which the clamping lever is mounted to be rotatable around the pivot axis on the convex clamping-lever bearing surface of the bearing body, and i) the at least one convex clamping-lever bearing surface of the bearing body is realised by a disc body with a cylindrical or part-cylindrical cross section and/or the concave bearing surface of the clamping lever is realised to be partially cylindrical, characterised in that j) the opening of the clamping lever in the cross section transverse to the pivot axis ja) comprises a partially cylindrical first partial cross section, the radius of which corresponds to the radius of the cylindrical or partially cylindrical disc body and which forms the concave bearing surface of the clamping lever which is pivotably contacted by the disc body of the bearing body and jb) comprises a second partial cross section, in the region of which the opening of the clamping lever forms an interspace with the bearing body when the bearing body with the disc body rests against the concave bearing surface of the clamping lever formed by the first partial cross section. a) a clamping bar, b) a clamping lever, c) a bearing body, on which the clamping lever is mounted to be pivotable around a pivot axis and which is displaceably guided in the clamping bar, d) the bearing body comprising at least one convex clamping-lever bearing surface and two clamping-bar bearing surfaces (30a, 30b), where the at least one convex clamping-lever bearing surface is arranged between the two clamping-bar bearing surfaces (30a, 30b), e) the clamping lever comprising at least one concave bearing surface and f) the clamping lever being mounted to be rotatable around the pivot axis on the convex clamping-lever bearing surface of the bearing body via the at least one concave bearing surface and the bearing body being displaceably guided in the clamping bar via the clamping-bar bearing surfaces, g) where the bearing body is inserted into the clamping lever in the direction of the pivot axis, h) the clamping lever comprises at least one opening, which is realised with a closed edge in a cross section transverse to the pivot axis and forms the concave bearing surface via which the clamping lever is mounted to be rotatable around the pivot axis on the convex clamping-lever bearing surface of the bearing body, and i) the at least one convex clamping-lever bearing surface of the bearing body is realised by a disc body with a cylindrical or part-cylindrical cross section and/or the concave bearing surface of the clamping lever is realised to be partially cylindrical, j) the opening of the clamping lever in the cross section transverse to the pivot axis ja) comprises a partially cylindrical first partial cross section, the radius of which corresponds to the radius of the cylindrical or partially cylindrical disc body and which forms the concave bearing surface of the clamping lever which is pivotably contacted by the disc body of the bearing body and jb) comprises a second partial cross section, in the region of which the opening of the clamping lever forms an interspace with the bearing body when the bearing body with the disc body rests against the concave bearing surface of the clamping lever formed by the first partial cross section. ja) comprises a partially cylindrical first partial cross section, the radius of which corresponds to the radius of the cylindrical or partially cylindrical disc body and which forms the concave bearing surface of the clamping lever which is pivotably contacted by the disc body of the bearing body and jb) comprises a second partial cross section, in the region of which the opening of the clamping lever forms an interspace with the bearing body when the bearing body with the disc body rests against the concave bearing surface of the clamping lever formed by the first partial cross section.