Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 25 mm, 1/2 ", 7/8 "
1/4, 1/2, 3/4, 1-1/2, 3/8
Phosphated, Phosphatized, Gun-metal, Black Oxide, Black Phosphate
3-9/16 in, 8 in, 4-1/8 in, 58 mm, 1-3/8 in
8-Point, 12-Point, 4-Point, 7-Point, 6-Point
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