View Drywall Rasp
Pics. There's a coarse teeth section for fast drywall edge trimming. This site might help you.
Can be used for finishing drywall boards, soft metals and rough surfaces. Guide rails keep rasp on edge, preventing injury. A very coarse file or scraper used to knock down very rough drywall mud quickly.
A drywall rasp is used to smooth the edges of the drywall once a cut is made.
Tajima's combination drywall rasp looks like a major improvement. Drywall repair shouldn't scare you. The rasp is the ideal tool to shave and form wood, vinyl, drywall and many other materials. When positioning the drywall panel, align the top of each panel with the ceiling edge or the angle break to assure a clean edge.