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