Content:
21pcs rethreader dies:
1/4”, 5/16”, 3/8”, 7/16”, 1/2”. 9/16”, 5/8” UNF
1/4”, 5/16”, 3/8”, 7/16”, 1/2”. 9/16”, 5/8” UNC
6x1.00, 8x1.25, 10x1.25, 10x1.50, 12x1.25, 12x1.5, 12x1.75mm

19pcs rethreader tap sizes:
1/4”, 5/16”, 3/8”, 7/16”, 1/2”, 9/16” UNF
1/4”, 5/16”, 3/8”, 7/16”, 1/2”, 9/16” UNC
6x1.00, 8x1.25, 10x1.25, 10x1.50, 12x1.25, 12x1.5, 12x1.75mm

Description pitch sizes:
SAE FILE: 11, 12, 13, 14, 16, 18, 20 and 24
SAE FILE: 9, 10, 12, 16, 20, 27, 28 and 32