How to sharpen a stilt IMPOSSIBLE .L'assise the support is not stable switching from side to another according to the press on the cutting edge of wireless lame.Votre s rounding on outside.Apparatus poorly designed: it lacks a "roulette" to be stable and stay "parallel" to the proposed pierre.Modification: ball bearing on both sides of the NUL appareil.Investissement but greasy fast delivery at Amazon Support