1-1/2″ Fractured Fin (3-7/16″ oc, 11/16″ peak, 2-3/4″ valley, 1-1/2″ relief) 1-1/2″ Fractured Fin (3-7/16″ oc, 11/16″ peak, 2-3/4″ valley, 1-1/2″ relief) July 13, 2022 1-1/2″ Fractured Fin (3-7/16″ oc, 11/16″ peak, 2-3/4″ valley, 1-1/2″ relief)