slalom

Keep your ski edges sharp and ready for the slopes with the Dianova Edge Tuner. Featuring dual diamond grits for precision—one for setting the 88° angle and one for burr removal—this affordable, high-quality edge sharpener is perfect for families and recreational skiers.

NOTE: Some skis that have never been sharpened before have plastics that protrude down a bit on the steel edge. If this is the case you need to remove the plastics first and this tool is not intended to that work.

Instructions on how to use the tool can be found here 
If you prefer Youtube then it’s here