Abstract: A system and method for separating breast meat from at least a part of a keel bone of a carcass part of slaughtered poultry includes a product carrier and a pair of breast meat cutter blades adapted to make an incision along the keel bone in the longitudinal direction of the keel bone. The breast meat cutter blades are moveable relative to each other between and open position and a closed position. The system further includes a blade actuator, which comprises a closing assembly to apply a biasing force to the breast meat cutter blades to bias the breast meat cutter blades towards the closed position, and an opening assembly to apply an opening force to the breast meat cutter blades to hold the breast meat cutter blades in the open position.