Internal Hex, Internal Torx, External Hex, External Torx
9/32 ", 2-1/2 ", 4 mm, 5/16 ", 1-3/8 "
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-1/16 in, 4-1/8 in, 1-3/4 in, 39 mm, 1-3/8 in
8-Point, 6-Point, 4-Point, 12-Point, 7-Point
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