Milbro Pendant Drill.

[Stevie777]

Hi, I was clearing out a garage and came across this Milbro pendant drill. At first, i had no clue as to what it was so googled it, this is what led me here.

I have a few questions though.

Milbro, Milnes Bros, Exchange findings, Pioneer, Why are there so many names for what i can see is this same motor. Who/what came first. Did one company make them then licence them out. ?

The one I found say's Milbro and was kinda looking for a date. It dont believe it has been used. It was wrapped up and boxed so no age-related wear or anything written on the box to give me an idea. It has a serial number. Is there anyway i can find out the age through this.? I know my father, who's garage it was in hadn't done anything with jewellry since the early 90's, though he was friends with a local jeweler.

Anyway. Here's the Drill in question.