Internal Hex, Internal Torx, External Hex, External Torx
3/16 ", 2-1/2 ", 4 mm, 5/16 ", 1-3/8 "
1-1/2, 3/4, 1/4, 3/8, 2-1/2
Phosphatized, Gun-metal, Phosphated, Black Oxide, Black Phosphate
36 mm, 3-9/16 in, 1-5/16 in, 8 in, 4-1/8 in
6-Point, 12-Point, 7-Point, 8-Point, 4-Point
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