Following the development of surface grinding, the grinding requirement is getting more and more accurate. More harder and hard-to-grind materials are chosen for surface grinding. "Anchor" have developed new resin bonding "BSD" & "BSW" which are special designed for surface grinding to achieve better cutting ability and longer wheel life. The performance of cutting ability is remain the same level and continued for a long time. Wheel dressing times and wheel consumption can be reduced to minimum for improving working efficiency and making total grinding cost down.