Aluminum Carbide Bur Set, 5 Piece, 1/4" Shank, (BT5A) Kit contains: BT13-1/4″ x 3/4″ Cylinder Shape Diamond-Cut / BT33-1/2″ x 1/2″ Ball Aluma-Cut / BT35-1/2″ x 1″ Cylinder Shape Aluma-Cut / BT36-1/2″ x 7/8″ Oval Aluma-Cut / BT40-3/8″ x 3/4″ Tree Shaped Aluma-Cut