Careful tuning of the side edge allows for increased grip in icy conditions as well as a ski that feels smoother throughout the turn & less ‘catchy'. The Semi Edger is a must have tool for anyone looking to do their own tuning & allows precision grinding & bevelling with angles that can be adjusted anywhere between 90° to 85°. The ergonomically designed guide comes with a high-quality 80mm file & can also take a diamond or oxide stone (not included).