Internal Hex, Internal Torx, External Hex, External Torx
3/16 ", 2-1/2 ", 4 mm, 5/8 ", 1 "
1, 2-1/2, 1/4, 3/4, 1-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
1-1/8 in, 58 mm, 39 mm, 26 mm, 1-3/8 in
8-Point, 12-Point, 4-Point, 6-Point, 7-Point
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