External Hex, Internal Hex, Internal Torx
5/16 ", 5/8 ", 15/16 ", 1 ", 1-3/8 "
3/4, 3/8, 1/2, 2-1/2, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Oxide, Black Phosphate
1-1/8 in, 8 in, 4-1/16 in, 39 mm, 13 mm
External Torx, 12-Point, 8-Point, 7-Point, 4-Point
-