Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 5/16 ", 18 mm, 1-1/4 "
1-1/2, 2-1/2, 3/8, 3/4, 1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3/4 in, 9/16 in, 34 mm, 8 in, 39 mm, 11/16 in
6-Point, 8-Point, 12-Point, 7-Point, 4-Point
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