Internal Hex, Internal Torx, External Hex
20 mm, 15/16 ", 35 mm, 1-3/8 ", 7/8 "
1, 3/8, 2-1/2, 3/4, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
4-1/16 in, 30 mm, 39 mm, 17 mm, 2-15/16 in
6-Point, 7-Point, 12-Point, External Torx, 4-Point
-