Which tool is a coarse metal toothed abrading device suitable for fast material removal and leaves a very rough finish?

• A. Detail Rasp Set
• B. Surform Shaver
• C. Rasp
• D. Flat File

Answer: (C)

Coarse metal toothed abrading tools are designed to remove material quickly and leave a rough surface. A rasp fits this role best because its teeth are large and widely spaced, which lets each stroke aggressively bite into the work and shave off material fast, producing a very rough finish ideal for rough shaping.

Detail rasp sets are for finer, more precise work, so they don’t remove material as quickly or leave as rough a surface. A surform shaver also removes material quickly and can be coarse, but it’s a different style (perforated plate with cutting teeth) and isn’t the traditional go-to for rapid bulk removal in many contexts. A flat file has finer teeth and is used for smoother, more controlled shaping, not for achieving a very rough finish quickly.

So, the rasp is the best fit for fast material removal with a very rough finish.