External Hex, Internal Hex, Internal Torx
1-5/16 ", 11 mm, 1/2 ", 1-3/8 ", 1-1/4 "
1-1/2, 1, 2-1/2, 1/2, 3/8
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
1-1/4 in, 13 mm, 58 mm, 7/8 in, 26 mm
8-Point, External Torx, 12-Point, 7-Point, 4-Point
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