10 SEGMENT PUCKS - 10 diamond encrusted puck segments MEDIUM BOND - suitable for grinding medium-soft to medium concrete GRIT SIZE & SET - #60/80 grit size includes 3 grinding discs USE WET OR DRY - walkbehind grinder recommended COMPATIBLE - fits Husqvarna PG 680/680RC/820/820RC Grinders Diamond grinding tooling designed for Husqvarna PG series floor grinding machines. 3 piece set with medium bond which is ideal for medium-soft to soft concrete. #60/80 grit with 10 diamond segments pucks, use wet or dry with Husqvarna floor grinders such as PG 680/820/830.