Internal Hex, Internal Torx, External Hex, External Torx
2-1/2 ", 4 mm, 15/16 ", 1-3/8 ", 5/8 "
1, 1-1/2, 2-1/2, 3/4, 1/2
Phosphated, Phosphatized, Gun-metal, Black Oxide, Black Phosphate
3-9/16 in, 8 in, 70 mm, 58 mm, 33 mm
8-Point, 4-Point, 12-Point, 6-Point, 7-Point
-