
The carbide holder came out just nice. After learning how to set up the correct angles and using jig setup for filing. The back support for the actual form tool was formed with a dremel. When the insert is in place it quides the cutting. The upmost holder was my first try on this tool and it is really bad. The angles are not correct and the missing support makes that a widow maker for inserts.

The finish on the tool is actually rapeseed oil. Hardening was done by quenching in the oil which then made this quite uniform and pleasant finish. The smell was - hmmm - appetizing and probably this is less poisonous than the other available finishes. I know absolutely nothing about hardening but the file cannot dent it any more and after making a test with another piece of this same material it did not chatter when blown by a hammer while in a vise ... no vice marks after that blow either.