With regard to Eklind making hex keys for Snap On, can you recall if they make all of them, or just some?
-I can't speak for all of what Eklind made for Snap-On as I wasn't familiar with the entire line from Snap-On. What I do know is the fold-up set in a stamped metal handle certainly was, still got a few in my tool chest. A simple stamp change in the die was all that was required to make them either Eklind, Snap-On, Park, or a couple of others brands I can't recall. This is called "house branding" and is quite common in manufactured products of all kinds. It makes determining COO rather difficult when all that is done is take out one stamp and put in a different one. I've done this at quite a few different companies.
At the time, some of our customers objected to "Eklind Tool" being on the shank so we had a new stamp created that simply stated "ET". For any hex key products with "ET" on it somewhere I'd say it's likely Eklind Tool.
I can remember, at about that time, Snap On offering what were fairly obviously Eklind hex keys. They were the same shape (including the tips), came in the same finish, and even the same holders (albeit different colours).
-The keys themselves would have manufacturing clues suggesting who made them. Eklind had a certain color after heat treating that the others did not, likely due to the steel and that particular heat treater. I'd heard the VP state this as an intentional result to allow Eklind to visually stand out at a glance. I've compared several different brands and there is a subtle visual difference. The metal fold-up handle was the only type made in-house during the 90's at the Chicago location. The plastic holders were supplied by company that molded them for us. There were no molding presses at the time. Eklind moved from Chicago to the suburbs after I left and I have no idea what they do there now. I left around 1996 IIRC.
Snap On also offered their “own” hex keys, that came in the distinctive silver chrome or gold finish, and were supplied in metal indexes. Were these produced by Eklind also?
-The keys with a finish other than black oxide probably weren't Eklind. I don't recall any hex keys having a different color finish regardless of who the customer was. There may well have been a few flash chrome examples that were special order but the Chicago location wasn't equipped to do anything like that. It's a fairly simple task to send something out to a plater or have a different colored surface treatment applied at the heat treater. Snap-On could very well have just contracted someone else to supply the silver/gold colored hex keys. As for the metal index containers, I've seen some older types that were made well before I started working there. During my tenure, (1993-1996) the only metal index holders for individual keys were stands for the T-handles.
As a matter of interest, I’ve been using Eklind hex keys since about that time, and have found them nothing other than first class! Though I must confess to using Bondhus too, particularly the T handle!
-That's ok, when I arrived I had a preference for the Unbrako brand. Getting free hex keys whenever I wanted did cause me to change brands. Which ball driver did I prefer? At that time there were only 2 brands of ball drivers, Bondhus and Eklnd. I was assigned the ball driver project and travel to German where a new process was being developed to make the ball driver. Bondhus used an opposing broach indexing method to produce their profile, older examples will show this. The new method produced a profile in a fraction of the time with special machinery. Due to industrial espionage going on in Germany the new process was intentionally leaked and other companies also acquired the machinery about 6-12 months after Eklind's machinery touched arrived at O'Hare airport. Now there are dozens of companies that likely use the same process. The profile is a simple programming code change.