Benchmark Abrasives professional 4” double row cup diamond wheel is perfect for faster grinding of granite, marble, tiles, concrete, natural stone, masonry, etc. These diamond grinding cups are of superior quality and manufactured to the strictest of standards. This threaded double arrow diamond grinding cup wheel gives aggressive arrow-shaped diamond segments for fast grinding. The high-quality and reliable grinding wheel has venting holes for excellent performance and long life. Suitable to use with an angle grinder, single floor grinder, and large floor grinding machine. Efficient diamond grinding cup wheels are used in various industries like automotive, transportation, mining, shipbuilding, construction, welding, foundries, fabrication, etc. All our abrasive products are made with quality materials and exceed ANSI and EU European Standards. We trust in delivering high-quality products to the end-user. Customer satisfaction is the lifeline of our brand. Wet/Dry use - If you find that using this blade dry generates too much dust, we suggest adding water to the workpiece. It will significantly lessen the amount of dust generated.