Internal Hex, Internal Torx, External Hex, External Torx
1-5/16 ", 5/8 ", 15/16 ", 1-3/8 ", 21 mm
2-1/2, 1-1/2, 3/8, 1/4, 1
Phosphated, Phosphatized, Gun-metal, Black Phosphate, Black Oxide
5 mm, 8 in, 58 mm, 2-1/2 in, 1-1/4 in
6-Point, 12-Point, 4-Point, 7-Point, 8-Point
-