Synthes Electric Pen Drive (EPD) System, The Synthes Electric Pen Drive is indicated for screw insertion, pin and wire replacement, cutting of bone and metal, drilling, decorticating, shaping, and smoothing of bones and teeth in a wide variety of surgical procedures, including, but not limited to general orthopaedic trauma, foot, hand, maxillofacial, neurosurgical, oral, otolaryngolical, reconstructive, and spine surgery.