Venev Double-sided Diamond Sharpening Stone, 6", (S), 50/40-20/14, 100%

Venev 50/40 - 20/14 Double Sided Diamond Bar Made by Venev Industrial Diamonds Inc. Unlike other abrasive stones, diamond bars have a much slower wear rate, so using them with hard steels is recommended. 6" Stone Format - Works With Blitz, Kadet, Pioneer, K03  This 6" long diamond bar can be used with all TSPROF and other sharpeners.  GOST 50/40 = FEPA F 250 | GOST 20/14 = FEPA F 400 The 50/40 side is manufactured using the B2-01 organic binder, which consists of phenol-formaldehyde resins and various compositions based on them. During hot pressing, these resins are transformed into a hard and strong substance that secures the cutting grains in the tool's working layer. This bond is designed to be strong and flexible, yet not too rigid. To increase its stiffness, manufacturer adds abrasive grinding powders like boron carbide. The 20/14 side is manufactured using an advanced OSB binder, which stands out by not incorporating boron carbide. Unlike other OSB bonds, the abrasive layer here