Internal Hex, Internal Torx, External Hex, External Torx
1-1/2 ", 1-1/8 ", 5/8 ", 5.5 mm, 35 mm
1/4, 2-1/2, 1-1/2, 3/4, 3/8
Phosphatized, Gun-metal, Phosphated, Black Oxide, Black Phosphate
1-15/16 in, E7, 8 in, 4-3/4 in, 26 mm
4-Point, 8-Point, 12-Point, 7-Point, 6-Point
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