Rattail File
IMPA Code: 614356/614357/614358/614359/614360/614361/614363/614364/614365/614366/614367/614368/614370/614371/614372/614373/614374/614375/614377/614378/614379/614380/614381/614382
Used on curved surfaces and for enlarging round holes. Sometimes called a rattail file.
