External Hex, Internal Hex, Internal Torx
3/16 ", 2-1/2 ", 4 mm, 9/16 ", 1-3/8 "
1-1/2, 2-1/2, 1/2, 3/4, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
E7, 8 in, 3/4 in, 9/16 in, 4-3/4 in, 7/16 in
8-Point, External Torx, 6-Point, 7-Point, 4-Point
-