DOUBLE SEGMENTS - Designed for Werkmaster Floor Grinders. Diamond encrusted bar segments allow longevity and higher productivity. MEDIUM BOND - suitable for grinding medium-soft to medium concrete. GRIT SIZE & 3PC SET - #120/150 grit size with 3 grinding discs VERSATILE - 2 bar segments available in both soft and medium bonds USE WET OR DRY Diamond grinding tooling designed for Werkmaster Floor Grinders . Medium bond is ideal for grinding suitable for grinding medium-soft to medium concrete. Set of 3 pieces with 2 segments and #120/150 grit. Use wet or dry.