Hand pliers tool comprising a) hand levers (4, 12), b) pliers jaws (5, 11) and c) a driving mechanism, which ca) comprises driving elements and cb) connects the hand levers (4, 12) to the pliers jaws (5, 11) in a way such that it is possible to induce a relative movement of the pliers jaws (5, 11) over a working stroke by a relative movement of the hand levers (4, 12), d) wherein two pliers pivoting parts (80, 81) are provided which are connected for being pivoted by a pivot bearing and which are pivoted relative to each other over the working stroke, e) a first pliers pivoting part comprises a bearing lug comprising an edge opening and f) a bearing pin of a second pliers pivoting part is inserted through the edge opening into the bearing lug of the first pliers pivoting part and the bearing pin is supported for being pivoted in the bearing lug, in this way the pivot bearing being provided, characterised in that g) the bearing pin of the second pliers pivoting part comprises an outer surface ga) comprising an outer surface portion having a transverse extension which is larger than the transverse extension of the edge opening of the first pliers pivoting part and gb) comprising an outer service portion having a transverse extension which is smaller than the transverse extension of the edge opening of the first pliers pivoting part, h) wherein it is only possible to insert the bearing pin of the second pliers pivoting part into the edge opening of the bearing lug of the first pliers pivoting part in an angular position or angular region which cannot be reached when the hand pliers tool has been completely assembled. a) hand levers (4, 12), b) pliers jaws (5, 11) and c) a driving mechanism, which ca) comprises driving elements and cb) connects the hand levers (4, 12) to the pliers jaws (5, 11) in a way such that it is possible to induce a relative movement of the pliers jaws (5, 11) over a working stroke by a relative movement of the hand levers (4, 12), ca) comprises driving elements and cb) connects the hand levers (4, 12) to the pliers jaws (5, 11) in a way such that it is possible to induce a relative movement of the pliers jaws (5, 11) over a working stroke by a relative movement of the hand levers (4, 12), d) wherein two pliers pivoting parts (80, 81) are provided which are connected for being pivoted by a pivot bearing and which are pivoted relative to each other over the working stroke, e) a first pliers pivoting part comprises a bearing lug comprising an edge opening and f) a bearing pin of a second pliers pivoting part is inserted through the edge opening into the bearing lug of the first pliers pivoting part and the bearing pin is supported for being pivoted in the bearing lug, in this way the pivot bearing being provided, characterised in that g) the bearing pin of the second pliers pivoting part comprises an outer surface ga) comprising an outer surface portion having a transverse extension which is larger than the transverse extension of the edge opening of the first pliers pivoting part and gb) comprising an outer service portion having a transverse extension which is smaller than the transverse extension of the edge opening of the first pliers pivoting part, ga) comprising an outer surface portion having a transverse extension which is larger than the transverse extension of the edge opening of the first pliers pivoting part and gb) comprising an outer service portion having a transverse extension which is smaller than the transverse extension of the edge opening of the first pliers pivoting part, h) wherein it is only possible to insert the bearing pin of the second pliers pivoting part into the edge opening of the bearing lug of the first pliers pivoting part in an angular position or angular region which cannot be reached when the hand pliers tool has been completely assembled.