External Hex, Internal Hex, Internal Torx, External Torx
4 mm, 1-1/2 ", 9/16 ", 5.5 mm, 1 "
1/4, 1-1/2, 3/8, 3/4, 2-1/2
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
3-3/4 in, 8 in, 1-1/4 in, 1-3/8 in, 11/16 in
4-Point, 6-Point, 7-Point, 8-Point, 12-Point
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