Holmenkol Racing File M­mini 

"The Racing File Mini from Holmenkol is the perfect professional file for the precise fine grinding of ski and snowboard edges. Specially developed to maximize performance on the slopes, it ensures precise and sharp edges that are essential for both skiing and snowboarding. With its compact size, it is ideal for on the go and fits easily into any tool bag."
"This file is an indispensable tool for anyone who wants to get the best out of their winter sports equipment. Whether you are preparing for the next downhill run or getting your board ready for the next freeride trip, the Racing File Mini delivers professional results. Holmenkol stands for quality and precision, and this tool is no exception."