So I just received this baby from Snap on a couple of days ago. I tried to insert my 6-pc snap on ratcheting screwdriver blades one by one into this handle. Surprisingly, half of them can not be inserted because they do not fit. The shanks are just a hair too thick. I tried my Gearwrench screwdriver shank, it does not fit either. So I forced it into the handle. The problem is now my interchangable screwdriver handle has turned into a non-interchangeable screwdriver handle, because I could never pull the shank out, no matter how hard I tried 
Is this called a perfect fit?
Has anyone had the same problem before?
http://buy1.snapon.com/catalog/item...group_ID=13203&store=snapon-store&dir=catalog

Is this called a perfect fit?

Has anyone had the same problem before?
http://buy1.snapon.com/catalog/item...group_ID=13203&store=snapon-store&dir=catalog