Internal Hex, Internal Torx, External Hex, External Torx
1 ", 5/16 ", 1-5/16 ", 9/16 ", 7/8 "
1/2, 2-1/2, 3/4, 1/4, 3/8
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
4-1/16 in, 13 mm, 58 mm, 24 mm, 26 mm
4-Point, 8-Point, 6-Point, 12-Point, 7-Point
-