An improved ski edge sharpening device is shown which features a body portion having first and second recesses. The first recess is adapted to retain a file at a predetermined angle to a bottom surface of the tool adapted to slide against the bottom surface of the ski, and the second recess holds a magnet of substantially the same length as the file for attracting and retaining ferrous filings generated during sharpening the ski, such that the fillings do not interfere with the filing operation and do not abrade the delicate bottom surface of the ski.