16 DOUBLE ROW SEGMENTS - designed for grinding, cleaning, leveling and coating removal GRIT SIZE - #30/40 grit BOND TYPE - medium bond ARBOR SIZE - 7/8"-5/8" non-threaded arbor EQUIPMENT TYPE - recommended to use with angle grinders Diamond grinding wheels designed for fast grinding with a smooth finishing. Ideal for general purpose applications on concrete and masonry, including grinding, cleaning, leveling and coating removal. Specifications: 16 DOUBLE ROW SEGMENTS - designed for grinding, cleaning, leveling and coating removal GRIT SIZE - #30/40 grit BOND TYPE - medium bond ARBOR SIZE - 7/8"-5/8" Arbor GRINDING METHOD - use wet or dry EQUIPMENT TYPE - recommended to use with angle grinders