Cromna self-adjusting wrenches
This is a set of good, heavy, well made adjustable wrenches, made under the name Chromna, each specified in a range of metric sizes. Beautiful things, there doesn't seem to be much information that I can find online, other than the fact they are made in Denmark and licensed to manufacturers in several countries. Patent 69670 is part of the forged-in text on the handle.
According to this book, that's a complete set of Cromna tools right there.
ReplyDeletehttps://books.google.com/books?id=z1FMDQAAQBAJ&pg=PT512&lpg=PT512&dq=cromna+tools&source=bl&ots=m3Prh444tI&sig=ACfU3U2U_gOO1ywilgSx0xI3Ugl0k8yHJw&hl=en&sa=X&ved=2ahUKEwjf9-rX0LXsAhWFVs0KHTOQC7I4HhDoATAEegQIAhAC#v=onepage&q=cromna%20tools&f=false
Thnaks! I've been meaning to buy that book.
ReplyDeleteThe dovetailed lower jaw is pretty impressive, but I bet expensive to produce. I wonder how long they lasted in hard use?
ReplyDeleteIt's funny the things that toolmakers of that era did to get around other maker's patents.
Hi there from Switzerland, I have two of these wrenches in original cardboard packaging, both unused (!) and in really good shape. With a little polishing, you get them out as new. Mine are marked "Suisse pat" on the arm and the cardboard is printed in German, French and Italian, so rather sure they were made here, our company used to buy the best tools by principle.
ReplyDeleteOne is S3 (7/16 - 5/8"), the other S4 (5/8 - 1").
>> I will put them on sale here. Wordwide shipping possible with full cost participation.
Happy working to all ! Stephan
Hi Stefan,
ReplyDeleteDo you still have them?
I'm still following the post, and the wrenches are still next to me. Didn't think of publishing them somewhere else yet. Let me know if you wish to pursue. Which country would they go to ?.. Regards, Stephan
ReplyDelete