Which tool is a medium coarse metal toothed abrading device, finer than a rasp but more aggressive than sandpaper, and not intended for plaster?

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

Answer: (C)

A tool described as medium coarse, with metal teeth, and sitting between rasp and sandpaper in aggressiveness is pointing to a flat file. Rasp teeth are very coarse and remove material quickly, so they’re more aggressive than what this item describes. Sandpaper represents the fine end of abrasion. A flat file has evenly spaced teeth along its length, giving controlled material removal that’s coarser than sanding but finer than a rasp. It’s also a metal-working tool, not intended for plaster, which fits the clue. The Surform shaver is designed for rapid, aggressive removal and is more suited to soft materials or surfaces where quick shaping is needed, so it doesn’t match the described middle-ground, plaster-free purpose. So the flat file is the best fit.