Small Riffler Files Curved Small RIFFLER HALF ROUND file 140 mm overall length approx. Gritted length 7.5cm. Perma Grit Riffler for Sculptors, Wood carvers, Walking stick horn & antler caving. Reaches into tight sports. Cuts in any direction, cleanly and quickly Use with or without a Handle, fits the NFH Handle with 3 mm collet. Medium grit equivalent to UK 220 grit sandpaper.