1/4
1/4" X 5/16" Spanner, Open End
3/8
3/8" X 7/16" Spanner, Open End
1/2
1/2" X 9/16" Spanner, Open End
5/8
5/8" X 11/16" Spanner, Open End
11/16
11/16" X 3/4" Spanner, Open End
15/16
15/16" X 1" Spanner, Open End