Internal Hex, Internal Torx, External Hex
7/32 ", 9/32 ", 2-1/2 ", 5/8 ", 5.5 mm
1, 3/4, 3/8, 2-1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3-9/16 in, 1-15/16 in, 1-11/16 in, 8 in, 7/16 in
8-Point, 4-Point, External Torx, 7-Point, 12-Point
-