External Hex, Internal Hex, Internal Torx
3/16 ", 2-1/2 ", 7 mm, 23 mm, 1-1/4 "
1-1/2, 3/8, 1/4, 3/4, 2-1/2
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
3 in, 3-9/16 in, 5 mm, 8 in, 39 mm
6-Point, External Torx, 7-Point, 8-Point, 4-Point
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