Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 7 mm, 30 mm, 5.5 mm
3/4, 2-1/2, 1/4, 1-1/2, 3/8
Phosphatized, Gun-metal, Phosphated, Black Oxide, Black Phosphate
3 in, 8 in, 1-3/4 in, 58 mm, 3/4 in, 9/16 in
6-Point, 7-Point, 8-Point, 12-Point, 4-Point
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