This tuner works best with 70mm x 25mm diamond stones

Medium 400 Grit

Remove burrs from your ski edges while simultaneously polishing them to a high performance shine

Belt Sand Base

70mm long edge tuning tool for skis and snowboards

Diaface Moonflex Diamond File Stone - 70mm 100 Grit Black Base Repair Tools This tuner works best withTune your ski or snowboard edges to perfection with the Diaface Moonflex Diamond File Stone. This portable ski edger fits in your coat pocket for emergency edge tunes in between runs. This diamond stone removes burrs while the unique design leaves a smooth finish. Forget about ugly, performance diminishing striation marks. The Moonflex file stone leaves all of that nonsense behind. Make sure you wet the stone before using. It works best in a file