External Hex, Internal Hex, Internal Torx, External Torx
2-1/2 ", 1 ", 20 mm, 5/8 ", 15/16 "
1/2, 3/8, 1-1/2, 3/4, 1/4
Phosphated, Phosphatized, Gun-metal, Black Oxide, Black Phosphate
3/8 in, 8 in, 1-3/4 in, 39 mm, 1-3/8 in
4-Point, 12-Point, 7-Point, 8-Point, 6-Point
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