Wide Applicability for Angel Grinder:This grinding wheel can fit almost all brand 5 inch angle grinder,such us Bosh,Makita,Dewalt and so on. Application:This grinding cup has double row segments design and good for grinding concrete and field stone no matter wet or dry. Highly Quality Material:Durable and reliable material makes this grinding wheel has a longer working times. Air Holes Design:Under the air holes designed,it can keep the grinder cups cooler and reduce wear and tear. Wet/Dry Use:This cup can be used under dry and wet working environment and more convenient for your working.