You are correct on the order from left to right, 3-1-2
The bit is SAE 1/16
I have an older kit from harbor freight that has the bit and even though it is not listed I think it is in this set.
But again you can use the small torx as you do not want to torque down anyway or will crack the 'end'.
If it already cracked I have a set of 'covers' for the ends that stop the expansion and allow you to use the wheel without having to buy new ones.