The machine i.e. agricultural disk harrow (1), has a chassis (2) provided with a set of rear tools (5) and a set of front tools (4), and a carriage (6) equipped with wheels (7), where the tools are disk arrays. The carriage passes from an intermediate position arranged between the tools, to a rear position arranged at the rear of the tools, and vice versa. The chassis includes a front part (13) and a rear pat (14) that supports the carriage and the rear tools.
