3 PIECE HEAVY DUTY STEP REAMER SET

3 Piece Heavy Duty Step Reamer Set includes 1 Piece each 5, 16/9, 16/13, 16, and 13/16/1, 1/16. 3 pieces/sizes included are: (5/16, 3/8, 7/16, 1/2, 9/16), (9/16, 5/8, 11/16, 3/4, 13/16), (13/16, 7/8, 15/16, 1-1/16) 3/8″ flattened shank. Heavy duty hybrid of a step drill and maintenance reamer.