External Hex, Internal Hex, Internal Torx
2-1/2 ", 4 mm, 1-1/2 ", 1-1/8 ", 1-3/8 "
1/2, 2-1/2, 1-1/2, 3/4, 1
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 4-1/16 in, 28 mm, 3/4 in, 9/16 in, 17 mm
External Torx, 4-Point, 12-Point, 7-Point, 6-Point
-