Internal Hex, Internal Torx, External Hex
3/16 ", 2-1/2 ", 4 mm, 7 mm, 5/8 "
1/2, 1/4, 2-1/2, 1-1/2, 1
Phosphatized, Gun-metal, Phosphated, Black Oxide, Black Phosphate
21 mm, 4-1/16 in, 4-3/4 in, 13/16 in, 7/16 in
6-Point, 8-Point, External Torx, 7-Point, 4-Point
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