The new Snap On impacts are much better than they use to be. My Blue Points were junk compared to my Ingersoll Rand impacts. I am not so sure about them being the same.
Martin
Not sure of the blue point vintage you are referring to... but I can gurantee 100% that if it was a blue point 1/2" impact made within the last 5 years it ran down the same assembly line as the IR 1/2" impact (using the same internal components...)