An embedment device for use in a cementitious panel production line such as a structural cementitious panel production line wherein hydraulic cement slurry is transported on a moving web on a support frame, and chopped fibers are deposited upon the slurry. The laser light generating device is suitable for delivering laser light with a transverse mode structure which varies in respect of time. The dimpled portions of the tongues are elastically flexible in a thickness direction of the guide bar to enable the nose member to be inserted or removed. The speed and ratchet wrenches are coaxially mounted within a handle that extends outwardly away from the housing. A determining unit is configured to determine a transversal target position of a nose of the head member relative to the body member and a steering unit is configured to steer the head member relative to the body member so that the nose of the head member is located at the transversal target position.