Internal Hex, Internal Torx, External Hex, External Torx
5/16 ", 15 mm, 2-1/2 ", 4 mm, 1-5/16 "
1-1/2, 3/4, 2-1/2, 3/8, 1
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
28 mm, 58 mm, 4-3/4 in, 13/16 in, 2-15/16 in
8-Point, 12-Point, 7-Point, 4-Point, 6-Point
-