No, you don’t use this to file down the floor, friend.
You need an 8″ single-cut bastard file to keep your long-handle scraper or small 1″ scraper sharp. And a bright, freshly-sharpened scraper is your only hope for getting your corners as clean and flat and smooth as the rest of your floor.
You already have a file? Is it a single-cut bastard file? Make sure it’s not a file with cross-hatching – that will just shred your scraper without sharpening it.
You already have an 8″ single-cut bastard File, you say? How long have you been using it? Files get dull with use, and dull files won’t sharpen your scraper.
Come on, sander friend, you deserve a shiny, new file.
Sorry, scraper not included.