External Hex, Internal Hex, Internal Torx
2-1/2 ", 1 ", 4 mm, 1-1/8 ", 5/8 "
2-1/2, 1/2, 3/4, 1-1/2, 1/4
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
8 in, 58 mm, 3/4 in, 9/16 in, 4-3/4 in, 2-15/16 in
6-Point, 7-Point, 8-Point, External Torx, 4-Point
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