I will post a demonstration picture tomorrow.
There are chamfers on it so you do not cut yourself. It is a little hard to drive a car with band aids on.
The long handle is so when you grip the tool and use it to help position the brush hoods. Once you have it in place you tighten everything down. Then you remove the tool from the brush hood by holding onto the handle.
The only time you would use the other piece is if you have to start completely over aligning the hoods. You put the tool all the way in until you see the hole through either the bushing or bearing. Then you would drop the straight piece of rod (same size as your arm) through the motor so that it is all lined up. Basically, what you have is a + type of configuration.
I am terrible at explaining things without pictures but I hope this helps.