External Hex, Internal Hex, Internal Torx
20 mm, 5.5 mm, 1-3/8 ", 7/8 ", 1-1/4 "
2-1/2, 1/4, 3/8, 3/4, 1-1/2
Phosphatized, Gun-metal, Phosphated, Black Oxide, Black Phosphate
4-1/16 in, 4-3/4 in, 1-3/8 in, 2-7/16 in, 5/16 in
External Torx, 12-Point, 8-Point, 7-Point, 6-Point
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