Reference FRCJ00000500.

Formed by all males of the threaded internal opening:
3, 4, 5, 6, 7, 8, 10, 12mm.
Accessories for opening external thread:
3, 4, 5, 6, 7, 8, 10, 12mm.
It also includes an enhancement of the opening of other internal and external opening
of 1 / 8 inch. Box of metal.