Internal Hex, Internal Torx, External Hex, External Torx
5/16 ", 9/32 ", 5/8 ", 2-1/2 ", 23 mm
1-1/2, 1/2, 1/4, 2-1/2, 3/8
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
3-3/4 in, 3-9/16 in, 8 in, 58 mm, 5/16 in
8-Point, 4-Point, 12-Point, 7-Point, 6-Point
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