Internal Hex, Internal Torx, External Hex, External Torx
4 mm, 1-5/16 ", 23 mm, 1-3/8 ", 5/8 "
1/2, 1/4, 1-1/2, 2-1/2, 3/8
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
13/16 in, 26 mm, 2-7/16 in, 2-15/16 in, 1-3/8 in
4-Point, 6-Point, 8-Point, 7-Point, 12-Point
-