Internal Hex, Internal Torx, External Hex, External Torx
1-5/16 ", 16 mm, 5/8 ", 9/16 ", 7/8 "
2-1/2, 1/2, 3/4, 1/4, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
3-9/16 in, 8 in, 1-1/4 in, 58 mm, 33 mm
4-Point, 12-Point, 6-Point, 7-Point, 8-Point
-