The present invention relates to a surgical saw comprising prevention means (2606, 2706)； attachment means (2620, 2750)； and a working part (2602, 2702) comprising at least one working surface for cutting of an object, in the form of working teeth (2604, 2704). The prevention means is configured to have a first position in which it protrudes from the working part, to prevent the working surface from cutting the object, when a force applied to the prevention means is less than a predetermined amount of force. The prevention means is further configured to have a second position in which it retracts to allow the working surface to cut the object, when the force applied to the prevention means is equal or higher than the predetermined amount of force.
