A bucket (10) that is attachable to a piece of earth moving equipment by means of transverse shafts (11). The bucket (10) includes an outer casing (12) providing an upper (first) jaw member (13) and a lower (second) jaw member (14) so as to generally encompass a passage (15) along which material to be crushed passes from a passage inlet (16) to a passage outlet (17). Preferably the jaw member (13) includes an attachment assembly (42) that provides for attachment of the bucket (10) via shaft (35) to the piece of moving equipment that is to use the bucket (10).