Sorry, but I have a totally different take on the Stanley Hex-A-matic.
I got mine from my father when I was just a kid. I was messing around with something or other, dealing with hex nuts smaller than those on my bicycle, and using an adjustable wrench to match several different sizes. He did not say a word, just handed it to me. I took it from him, moved the collar in and out, clocked what it was all about and commenced using it. After I loosened a couple of DIFFERENT size nuts, I turned to him and said WOW. He cracked the biggest smile and indicated that it was MINE!
Fact, thirty years later I was an electronic emergency repair technician servicing broadcast and recording studios in the NYC metropolitan area. First let's define the word "emergency."
Nobody's life was ever at stake. BUT if it was a recording studio, the clock had stopped meaning NO MONEY WAS BEING CHARGED! If it was a broadcast facility, and they were "off the air" it meant all the commercials that should be airing were not, therefore income was ZERO. So, for Managers, Chief-Technicians, Vice Presidents and OWNERS, believe me, it WAS an EMERGENCY.
I was paid to be FAST in terms of figuring out the problem, getting to the root, and rectifying the situation as fast as "yesterday."
Picture this; multiple racks of equipment and literally miles of interface cabling. The electronic signal processing equipment was not uniform. It could have been manufactured Stateside, or (this is pre-China) Europe. Who knew? Inch, metric, or Japanese standards could apply.
All the rack equipment would be held in place by a single type of fastener, but everything else was up in the air! Here you'd find yourself behind a wall of racks removing connector panels, probing the inside of switchers and diving into anything that you had to get the place "up and running." Additionally, I had a reputation to uphold, I was THE go-to guy! That hex-o-matic saved my **** countless times.
I think I know why it was both discontinued and how it got its BAD reputation. At one point Stanley manufactured the Hex-o-matic as a BIT TO BE PLACED IN COMMON HAND DRILLS!!!!!!
Look at the tool, understand how it functioned and you will understand THAT option is a flat out TRAGETY in the making! I don't know how many lawsuits it took, but it was so bad that Stanley not only dropped the "Hex-o-matic DRILL BIT" but the hand operated Hex-o-matic as well.
I got mine. If you deal with multiple medium small hex nuts and get a chance to pick one up, I say "JUMP ON IT!"