This sturdy Inox Steel Ski Man Side Edge File Guide from Wintersteiger allows you to apply a precise 89 degree side edge angle on your skis or snowboard. This reliable tool can be used with most files and diamond stones. The innovative milled corner channel allows filings and shavings to fall away from the base, leaving you with a pristine work area. If you're planning on tuning your skis at home, make sure you have one of these file guides handy. Part Number: WS-57-401-306