DOUBLE SEGMENTS - diamond encrusted bar segments allow longevity and higher productivity MEDIUM BOND - suitable for medium soft to medium concrete GRIT SIZE & SET - #60/80 grit size includes 3 trapezoidal grinding discs COMPATIBLE - fits Syntec fast-change floor grinding machines USE WET OR DRY - walkbehind grinder recommended Diamond grinding tooling designed for fast-change floor grinding machines. Medium bond is ideal for medium-soft to medium concrete hardness