External Hex, Internal Hex, Internal Torx, External Torx
2-1/2 ", 4 mm, 5/16 ", 5.5 mm, 1-3/8 "
Phosphatized, Phosphated, Gun-metal, Black Oxide, Black Phosphate
1-11/16 in, 3-9/16 in, 36 mm, 8 in, 1-1/4 in
8-Point, 6-Point, 12-Point, 4-Point, 7-Point
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