External Hex, Internal Hex, Internal Torx, 6-Point, External Torx
7/32 ", 2-1/2 ", 10 mm, 1-1/8 ", 5.5 mm
1/4, 1, 3/4, 1-1/2, 2-1/2
Phosphatized, Phosphated, Gun-metal, Black Phosphate, Black Oxide
E7, 5 mm, 8 in, 19 mm, 33 mm
8-Point, 7-Point, 12-Point, 4-Point
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