Chrome Vanadium Steel.
Sizes Included:
1/4" x 5/16"
3/8" x 7/16"
1/2" x 7/16"
13/16" x 7/8"
15/16" x 1-1/16"
1" x 1-1/8"
1-1/8" x 1-1/4"
Sizes Included:
1/4" x 5/16"
3/8" x 7/16"
1/2" x 7/16"
13/16" x 7/8"
15/16" x 1-1/16"
1" x 1-1/8"
1-1/8" x 1-1/4"