1824 number 3 combined drill and countersink. Number 3 plain type drill and countersink. Cle-Line is a familiar name to users of quality cutting tools. Cle-Line cutting tools have been manufactured for decades specifically for the construction, maintenance, repair, operating and industrial -Line is a familiar name to users of quality cutting tools. Cle-Line cutting tools have been manufactured for decades specifically for the construction, maintenance, repair, operating and industrial markets.