External Hex, Internal Hex, Internal Torx, External Torx
16 mm, 2-1/2 ", 5/16 ", 1-1/2 ", 9/16 "
1-1/2, 1, 2-1/2, 3/8, 1/4
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
7/16 in, 4-1/8 in, 2-1/2 in, 13/16 in, 3-3/8 in
12-Point, 8-Point, 7-Point, 6-Point, 4-Point
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