^ that is the primary reason I joined this website a few months ago: the dearth of accurate information about Indestro.
I attempted to contact AlloyArtifacts years ago but never received any response from them.
Perhaps part of my "buyer" way of thinking - I don't "chase" people down for answers or responses. (Or wait very long for responses from Ebay sellers on "best offers".)
I started doing the purchasing on Indestro right out of high school. My old man put me in charge of the buying on Indestro, Excello brass, and Cal Custom (the first three lines I handled.) My brother-in-law focused on the "hard parts" - Niehoff, Carter, Durkee-Atwood, Fel-Pro, etc., and I got the "soft stuff": tools, accessories - the "schlock", as it is known in the parts industry.
So... I know a lot about a little, and a little about a lot, and not much about all the rest.
Unfortunately, I don't know a lot about the company's history, or what was happening in the late 1980s, because they had me managing the retail stores and doing the buying and inventory management on the fly, while brother-in-law stayed in the warehouse and continued buying about half the lines. (at last count I was dealing with about 180 different vendors, and we carried about 183,000 line items in the stores and the warehouse.)
At some point in the mid-1980's, because Indestro's fill rate dropped below 30%, brother-in-law negotiated a deal with the Thorsen Tool representative (Don Hall at the time), and Hall finagled a deal with the factory to buy ALL of our existing Indestro inventory for $.40 (forty cents) a pound.
Brother-in-law then left the company, and the whole ball of wax got dumped in my lap.
After that I'm sketchy on details, because there was a lot of stuff happening with the company and the automotive aftermarket and it happened really really fast. Indestro Tool got switched to Thorsen (US), and then Thorsen went to hell in a handbasket and it became "TAT" (Thorsen Allied - imported from Taiwan). Tool sales plummeted. Customers were pissed off. Employees balked about trying to sell Taiwan tools at US tool prices, and I dropped Thorsen/TAT and switched the whole thing over to Wilmar, which at the time was coming out with a full line of fairly decent-looking, if not still made-in-China-cheap-***-**** tools. (Wilmar later became "Performance Tool" which can be found at O'Reilly's, if I'm not mistaken.) Garbage by any name you wish to call it, but it was cheap, and I had a hell of a relationship with the Wilmar representative and could twist his arms for pricing/dating/and co-op advertising money.
We sold off most of the stores and closed the last one in 1988, so I have no clue what happened to Indestro in their last few years of operation.
Just trying to fill in some of the blanks and dispel the misinformation - like the confusion with "Industro" - an Asian import line.