Internal Hex, Internal Torx, External Hex, External Torx
7/16 ", 9 mm, 1-1/2 ", 27 mm, 1-3/8 "
1, 3/4, 3/8, 1-1/2, 2-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
1-11/16 in, 8 in, 16 mm, 4-1/8 in, 17 mm
8-Point, 6-Point, 7-Point, 12-Point, 4-Point
-