External Hex, Internal Hex, Internal Torx
4 mm, 9 mm, 1/4 ", 5.5 mm, 1-3/8 "
2-1/2, 3/4, 1/2, 1-1/2, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
1-3/4 in, 33 mm, 1-1/4 in, 26 mm, 2-15/16 in
12-Point, 7-Point, 6-Point, 8-Point, External Torx
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