Internal Hex, Internal Torx, External Hex, External Torx, 6-Point
7/32 ", 3/16 ", 2-1/2 ", 5.5 mm, 1-3/8 "
1-1/2, 3/8, 1/4, 2-1/2, 1
Phosphatized, Gun-metal, Phosphated, Black Phosphate, Black Oxide
36 mm, 8 in, 4-1/16 in, 58 mm, 17 mm
12-Point, 8-Point, 7-Point, 4-Point
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