French EdgerThis skiving tool helps reduce the thickness of the leather, either on the edge or throughout the whole piece. Maker's recommendation. 6mm Good for general narrow width work. 8mm This is the best size. Only by using this you can feel the best performance of the Palosanto french edger. 10mm You can work on a wide area without requiring a lot of power and skill. If you just want to buy something wide, I recommend 10mm, not 12mm. Purchase for a special