Abstract: The invention relates to a scrap shearer comprising a displaceable frame (1) and a pair of blade units (2, 3) shearing in a scissor-like manner, whereby the blade units are fastened on the frame (1) so that at least one of the blade units (2, 3) is pivotable. The object of the invention is to provide a scrap shearer which is displaceable to such large scrap objects as e.g. ships and which is capable of advancing within the scrap object, by means of which shearer the requirements of different kinds of scrap objects can be taken into account in the best possible way. This is achieved according to the invention in such a manner that fastening means (7, 8, 11) of the pivotable blade unit (2) are adjustable for the adjustment of the shearing gap and/or angle between the blade units (2, 3).