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