Internal Hex, Internal Torx, External Hex, External Torx
4 mm, 5/16 ", 1-1/2 ", 1-1/8 ", 5/8 "
1-1/2, 2-1/2, 1/2, 3/8, 1
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
8 in, 4-1/8 in, 33 mm, 39 mm, 3-3/8 in
6-Point, 7-Point, 4-Point, 12-Point, 8-Point
-