External Hex, Internal Hex, Internal Torx, External Torx
2-1/2 ", 4 mm, 6 mm, 5/16 ", 15/16 "
3/8, 1/2, 1, 1-1/2, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3/8 in, 8 in, 28 mm, 1-1/4 in, 4-3/4 in
6-Point, 12-Point, 7-Point, 4-Point, 8-Point
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