Internal Hex, Internal Torx, External Hex, External Torx
7/32 ", 3/16 ", 36 mm, 2-1/2 ", 21 mm
1/2, 1, 2-1/2, 3/8, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3-9/16 in, 1-11/16 in, 8 in, 30 mm, 26 mm
8-Point, 12-Point, 4-Point, 7-Point, 6-Point
-