They look like metal scrapers to me. I have a couple I got from my grandfather. They were intended to use with cast bearings (babbet, etc...). I have used them with cast pewter mounts like a nose piece. You really can't file soft metals like pewter or lead. They have to be scraped. I have also tried them with not a lot of success on brass butt pieces and trigger guards. Actually, my scraper made from a utility knife blade works better on brass.