PROXXON Drill sharpener BSG 220

http://www.satberlin.de/de/Proxxon-Maschinen/Zubehoer-fuer-Industrie-und-Dentalqualitaet/Proxxon-Bohrschaerfgeraet-BSG-220-NO-21200 The sharpening operation is controlled exactly by means of the movable carriage. This moves from left to right and also rotates the drill bit on its own axis. This operation yields the correct relief angle. The carriage is fitted with a feed screw for fine feed. A dressing stone, ensuring a sharp cutting surface, is also fitted. Clip made by st.one pictures: http://stonepictures.wordpress.com/