Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 5.5 mm, 5/8 ", 7/8 "
1-1/2, 2-1/2, 3/4, 1/2, 1
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
43 mm, 4-3/4 in, 39 mm, 2-1/2 in, 11/16 in
12-Point, 8-Point, 4-Point, 7-Point, 6-Point
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