My Father sold plumbing supplies and tools for about 25 years, so I grew up around quite a few Chicago Specialty Manufacturing Company tools. As late as the early to mid 90's they were still for sale, but as far as I know, the company has gone out of business now. I still have, and use, quite a few of them. I still use a nice old Chicago Specialty strap wrench to remove and install oil filters when I change oil. Their tools were always fairly well regarded, although not as well regarded as similar, more expensive, tools from Ridgid or Reed. Those flaring tools are for creating 45 degree flares in soft copper tubing for use on flare fittings in low pressure plumbing work. They look in really nice shape, and they are fairly heavy duty tools, but they are also for fairly large copper tubing so many people wouldn't have a use for them in their home. The 3703A would be a much more useful tool for the average homeowner. With that said, I'd probably pay 30 bucks each for them because they look like they have never been used and they look like heavy duty models.
