Actually it has come out OK, not perfect but I think it should be OK after sanding
You can get very, very cheap ones which kinda do an okay job - much quicker than sanding anyway! Do you have a wet stone or something to sharpen the hypothetical blade when it dulls?
I was thinking D & M Tools - Power Tools, Hand Tools and AccessoriesScrew fix is your friend! As if you need an excuse to get more power tools.