External Hex, Internal Hex, Internal Torx
1-5/16 ", 18 mm, 5.5 mm, 1-3/8 ", 5/8 "
1-1/2, 3/4, 2-1/2, 3/8, 1
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
58 mm, 24 mm, 13 mm, 1-1/4 in, 26 mm
4-Point, 12-Point, External Torx, 7-Point, 6-Point
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