mehrreihige einzelkorns u00e4maschine with a frame, and at least one transverse to the direction of internal, teleskopierbar the length changeable rahmenelement inwith the at least one rahmenelement several, for example, as s u00e4aggregate trained, working tools are attached.and the at least one rahmenelement an outer rohrabschnitt and at least one inner rohrabschnitt includeswith the at least one inner rohrabschnitt gleitverschieblich within the outer rohrabschnitts is stored.in order to create a teleskoprahmen which high stability is insensitive to any torsional forces is providedat least the outer rohrabschnitt an at least approximately h floor querschnittsprofil inwith the auskragungen of h - shaped querschnittsprofils as keilf u00f6rmige grooves are trainedand the at least one inner rohrabschnitt through gleitelementen locking within the outer rohrabschnitts led'swith the sliding elements on the interior of the wedge-shaped auskragungen of at least approximately h shaped querschnittsprofils outer rohrabschnitts concerns.