There is no difference

Due to their excellent performance and weak leading

the angles of which are sharper than 45°

focusing on the values of the protractor

consider buying an extra strop

curved metallic bonded diamond for edge pro Grit:240 There is no differenceCurved Venev Bonded Diamonds are used for sharpening inwardly curved blades on Hapstone knife sharpeners. Diamond sharpening stones offer excellent performance in sharpening knives of any steel. The working surface is curved. Curved diamonds are designed to sharpen kukris, karambits, hawkbills, scythes and any type of recurved blades. Curved Diamonds consist of a 2 mm thick diamond bearing layer on a metal base. The diamond bearing layer contains