Internal Hex, Internal Torx, External Hex
1 ", 4 mm, 9 mm, 1-1/8 ", 5.5 mm
2-1/2, 3/8, 3/4, 1/4, 1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
19 mm, 4-3/4 in, 39 mm, 2-1/2 in, 2-7/16 in
8-Point, 4-Point, 7-Point, 6-Point, 12-Point
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