A rotary cutter for a brush cutter includes a head main body having a cord guide hole and a pressure member having a cord inserting guide hole formed to radially penetrate through the pressure member. The pressure member is operable between a first state in which the cord inserting guide hole of the pressure member is aligned with the cord guide hole of the head main body so that a cutting cord is insertable into the head main body a second state in which the pressure member is pushed inwardly of the head main body from the first state and a third state in which the pressure member is rotated with respect to the head main body from the second state so that the inserted cutting cord is made into a bent state.
