Internal Hex, Internal Torx, External Hex, External Torx
9/32 ", 2-1/2 ", 4 mm, 1-1/2 ", 11 mm
2-1/2, 3/8, 3/4, 1/2, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
3-3/4 in, 8 in, 58 mm, 4-3/4 in, 7/16 in
12-Point, 4-Point, 8-Point, 7-Point, 6-Point
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