A logarithmic scale also has the property of equidistant spacing for any geometric progression

and preparing an edge for further refinement

4" mounted stones

experts estimate Rozsutec as 4000 - 6000 JIS

universal stone holders for professional precision adjust back-in-stock A logarithmic scale also hasHapstone PlaneShift Series includes components of Hapstone RS (such as stone holders or clamp system) adopted for other sharpening systems: PPA, WSPA, KME, Wicked Edge. Universal Stone Holder for Work Sharp Professional Precision Adjust is equipped with a digital angle gauge holder and a stone changing pin. Universal Stone Holder allows using ANY rectangular sharpening stones: 6" Professional Precision Adjust diamonds and blanks 6" mounted stones