Internal Hex, Internal Torx, External Hex, External Torx
5/16 ", 1-1/2 ", 5.5 mm, 1-3/8 ", 1-1/4 "
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
2-1/4 in, 3-3/4 in, 8 in, 4-1/16 in, 13 mm
12-Point, 6-Point, 7-Point, 8-Point, 4-Point
-