Shapton Pro series stones are universal and can be used to sharpen knives of any steel including high carbon

depending on the steel hardness of your knives

Diameter: 7

gives slightly better polish if used with a nagura

Chosera 3000

6 stone holder for work sharp precision adjust 1 back-in-stock Shapton Pro series stones areWork Sharp Precision Adjust is a fantastic sharpener. However, it's limited by stock sharpening stones mounted on the proprietary holder. 6" Stone Holder for Work Sharp Precision Adjust overcomes the limitation. As of today, you may use any 6" sharpening stones including Venev Centaur and Venev Ursa Series dual side diamonds, and any Edge Pro form factor stones (with mounting). Important! Before you make a purchase, please keep in mind the 6" Stone