A modular prosthesis rasp is provided, having a rasp body with a rasp main body and at least one modular rasp body part connectable to the main body. The rasp main body has a receptacle for receiving the at least one rasp body part. An outer contour is defined by the rasp main body and the at least one rasp body part. The rasp body part receptacle extends from an indentation, defining a distal end of the receptacle, on a lateral side of the rasp main body to a proximal end thereof. A first tangential plane of the lateral side of the outer contour in the region of the indentation and a second tangential plane at a rasp body part contact surface, in the region of the distal end of the receptacle include an indentation angle of less than 85°.