External Hex, Internal Hex, Internal Torx
2-1/2 ", 4 mm, 6 mm, 5/8 ", 1-3/8 "
3/4, 1, 2-1/2, 1/2, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
16 mm, 70 mm, 58 mm, 3/4 in, 9/16 in, 35 mm
4-Point, External Torx, 8-Point, 7-Point, 6-Point
-