Clamping tool, comprising: - a base (12; 122; 162; 202; 302), - a clamping arm (20; 126; 167; 226) articulated to the base (12; 122; 162; 202; 302) for pivotal movement about a first pivot axis (18; 166; 230), - a handle (40; 244) articulated to the clamping arm (20; 226) for pivotal movement about a second pivot axis (38; 248) and a bridge element (57; 252) articulated to the handle (40; 244) for pivotal movement about a third pivot axis (56; 250), or - a handle (130; 172) articulated to the basis (122; 162) for pivotal movement about a second pivot axis and a bridge element (138; 178) articulated to the clamping arm (126; 167) for pivotal movement about a third pivot axis, - a first wedge element (60; 134; 182; 254) having a first wedge surface (68; 258), said first wedge element (60; 134; 182; 254) being linearly guided on a guide (58; 132; 180; 256), wherein the bridge element (57; 138; 178; 252) is connected to the first wedge element (60; 134; 182; 254) and is articulated to the first wedge element (60; 134; 182; 254) for pivotal movement about a fourth pivot axis (72; 186; 266), - a second wedge element (74; 136; 188; 262) having a second wedge surface (80; 260) facing towards the first wedge surface (68; 258), said second wedge element (74; 136; 188; 262) being adapted to the first wedge element (60; 134; 182; 254) and being linearly guided, wherein in a first positional range of the handle (40; 130; 172; 244), the first wedge surface (68; 258) and the second wedge surface (80; 260) are spaced apart from one another and wherein in a second positional range of the handle (40; 130; 172, 244), the second wedge surface (80; 260) is supported on the first wedge surface (68; 258) and a displacement of the first wedge element (60; 134; 182; 254) drives a displacement of the second wedge element (74; 136; 188; 262), and - an adjustment device (92; 268) which acts on the second wedge element (74; 136; 188; 262) and which provides a capability of adjusting a position of the second wedge element (74; 136; 188; 262) in which the first wedge element (60; 134; 182; 254) acts on the second wedge element (74; 136; 188; 262) for driving it, wherein the adjustment device (92; 268) is arranged on the bridge element (57; 138; 178; 252) and is, in particular, held on the bridge element (57; 138; 178; 252), characterized in that the adjustment device (92; 268) comprises an operative element located on the bridge element (57; 138; 178; 252) for pivotal movement about a fifth pivot axis. - a base (12; 122; 162; 202; 302), - a clamping arm (20; 126; 167; 226) articulated to the base (12; 122; 162; 202; 302) for pivotal movement about a first pivot axis (18; 166; 230), - a handle (40; 244) articulated to the clamping arm (20; 226) for pivotal movement about a second pivot axis (38; 248) and a bridge element (57; 252) articulated to the handle (40; 244) for pivotal movement about a third pivot axis (56; 250), or - a handle (130; 172) articulated to the basis (122; 162) for pivotal movement about a second pivot axis and a bridge element (138; 178) articulated to the clamping arm (126; 167) for pivotal movement about a third pivot axis, - a first wedge element (60; 134; 182; 254) having a first wedge surface (68; 258), said first wedge element (60; 134; 182; 254) being linearly guided on a guide (58; 132; 180; 256), wherein the bridge element (57; 138; 178; 252) is connected to the first wedge element (60; 134; 182; 254) and is articulated to the first wedge element (60; 134; 182; 254) for pivotal movement about a fourth pivot axis (72; 186; 266), - a second wedge element (74; 136; 188; 262) having a second wedge surface (80; 260) facing towards the first wedge surface (68; 258), said second wedge element (74; 136; 188; 262) being adapted to the first wedge element (60; 134; 182; 254) and being linearly guided, wherein in a first positional range of the handle (40; 130; 172; 244), the first wedge surface (68; 258) and the second wedge surface (80; 260) are spaced apart from one another and wherein in a second positional range of the handle (40; 130; 172, 244), the second wedge surface (80; 260) is supported on the first wedge surface (68; 258) and a displacement of the first wedge element (60; 134; 182; 254) drives a displacement of the second wedge element (74; 136; 188; 262), and - an adjustment device (92; 268) which acts on the second wedge element (74; 136; 188; 262) and which provides a capability of adjusting a position of the second wedge element (74; 136; 188; 262) in which the first wedge element (60; 134; 182; 254) acts on the second wedge element (74; 136; 188; 262) for driving it, wherein the adjustment device (92; 268) is arranged on the bridge element (57; 138; 178; 252) and is, in particular, held on the bridge element (57; 138; 178; 252),