Thanks. Rasps are Not the very same steel as old files. They have most of the very same components metallurgically with tiny variations. They never carry out the very same as W-two of the old files, nonetheless excellent, just distinctive. I have in no way been in a position to nail down specifically what steel rasps are produced from. Normally get distinctive answers.
I do test them just like each and every Blade in my shop. Leather scrap cutting, tough Antler chopping, and if they cleanly slice paper afterwards they go on to get a manage.