Internal Hex, Internal Torx, External Hex, External Torx
1-1/8 ", 5.5 mm, 1-3/8 ", 5/8 ", 7/8 "
1/4, 3/8, 2-1/2, 3/4, 1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 4-1/16 in, 43 mm, 4-3/4 in, 2-15/16 in
12-Point, 6-Point, 8-Point, 7-Point, 4-Point
-