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