32 mm. 1/2" DR. 6 point socket
Socket arrived all scratched up; oxide coating not applied properly. Now i know it is only a tool; but i can walk into any home depot or lowes or sears for that matter and pick up any socket in perfect condition. I opted to spend up to 3 times the money for a high quality american made product. I cannot say with good confidence that i will be shopping nor could I recommend Armstrong at this time. I will have to give Snap-on, Matco,and S-K another look. PS the damage was obviously not donne by shippng.