External Hex, Internal Hex, Internal Torx
2-1/2 ", 5/16 ", 1-1/2 ", 1-5/16 ", 5.5 mm
1, 1/4, 1-1/2, 2-1/2, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 3/4 in, 9/16 in, 4-3/4 in, 39 mm, 17 mm
6-Point, External Torx, 7-Point, 4-Point, 8-Point
-