Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 1-5/16 ", 5/8 ", 7/8 "
1, 3/4, 2-1/2, 1-1/2, 3/8
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
3-9/16 in, 8 in, 21 mm, 4-1/16 in, 3-3/8 in
7-Point, 6-Point, 8-Point, 12-Point, 4-Point
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