External Hex, Internal Hex, Internal Torx, External Torx
2-1/2 ", 4 mm, 1-1/8 ", 23 mm, 1-1/4 "
1/4, 1/2, 1-1/2, 3/8, 3/4
Phosphatized, Phosphated, Gun-metal, Black Oxide, Black Phosphate
7/8 in, 3-9/16 in, 30 mm, 8 in, 4-1/16 in
4-Point, 6-Point, 8-Point, 12-Point, 7-Point
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