A rotatable part of a trimming apparatus arranged for cutting and removing of grass and other vegetation adjacent a sprinkler head of a watering system, the rotatable part comprises:
- an elongated shaft having a lower end and an upper end in an intended position for use of the rotatable part, wherein the elongated shaft is configured for rotation about a center longitudinal axis extending through the elongated shaft, wherein the upper end is arranged for connection to a driving device to achieve the rotation of the elongated shaft, and
- a cutting head comprising a connection central portion arranged for connection of the cutting head to the lower end of the elongated shaft and arranged for transfer of the rotation of the elongated shaft to the cutting head,
- wherein the cutting head comprises at least one arm, preferably three arms, extending radially from the connection central portion,
- wherein the at least one arm comprises a cutting element connected to a distal end of the at least one arm in relation to the attachment central portion-, wherein the cutting element comprises:
- a central part connected tangentially to an outermost edge of the distal end of the at least one arm radially in relation to the connection central portion, and
- a rear part arranged at an angle in relation to the central part and arranged at a rear edge of the central part in relation to a rotational direction of the cutting head during rotation of the cutting head,
- wherein the cutting element comprises a front part arranged at a further angle in relation to the central part and arranged at a front edge of the central part in relation to the rotational direction of the cutting head during rotation of the cutting head, wherein the front part is arranged on the opposite side of a plane through the central part in relation to the rear part.