single - edged wood chipper blades which can be repeatedly removed from a wood chipper and sharpened , as needed , to prevent the need for disposing of multiple conventional blades over a prolonged period of repeated use . each of the replaceable blades typically includes a blade mount base for engaging a rotary chipping head of the chipper , a clamp plate for engaging the blade mount base , and a blade body interposed between the blade mount base and the clamp plate . a blade edge is shaped in the front end of the blade body , and extends from between the blade mount base and the clamp plate . a blade babbitt is provided in the rear end of the blade body . accordingly , the blade body can easily and repeatedly be removed from between the blade mount base and the clamp plate and sharpened , and again secured in place between the blade mount base and the clamp plate , as needed for optimum and economical operation of the chipper over a prolonged period .