Internal Hex, Internal Torx, External Hex, External Torx
4 mm, 1-1/2 ", 5.5 mm, 1-3/8 ", 1-1/4 "
1, 2-1/2, 1/4, 1/2, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
4-1/16 in, 39 mm, 2-1/2 in, 1-3/8 in, 15/16 in
6-Point, 4-Point, 8-Point, 12-Point, 7-Point
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