Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 5.5 mm, 5/8 ", 1-3/8 "
1/4, 3/8, 1/2, 2-1/2, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 58 mm, 3/4 in, 9/16 in, 11/16 in, 1-3/8 in
8-Point, 6-Point, 4-Point, 12-Point, 7-Point
-