Beveled Oboe Reed Knife for binding scraping. It makes it fun, and won't slice the crap out of your fingers. You can wrap your fingers around the blade and it won't cut you, but sharp as F*** for scraping. I literally wrap my fingers around the blade, and use my thumb as a guide against the top of the surface (sorta like a router guide).
As always, the more you spend the better the blade, but like this: