External Hex, Internal Hex, Internal Torx, External Torx
5/16 ", 7/32 ", 2-1/2 ", 4 mm, 7/8 "
3/8, 3/4, 1/4, 1/2, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
8 in, 19 mm, 4-1/8 in, 3/4 in, 9/16 in, 2-15/16 in
6-Point, 8-Point, 12-Point, 4-Point, 7-Point
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