【Size】Diameter 7''(180mm); segment thickness 2.6mm; diamond grit #40/50; 5/8''-11 thread 【Application】Ideal for dry or wet cutting and grinding of Granite Marble Procelain Ceramic Tile Stoneware Quartz Artificial Stone, etc 【Double-sided Diamond Coating】Fully diamond coated edge and triangle spots coated on both-sided design provides faster and more efficient cutting and grinding, improve work efficiency and reduce cost 【Electroplated Technology】Electroplated technology keeps all diamond grain attached to the steel core, 100% diamond exposed provide high efficient working performance 【Recommended Machine】Diamond cutting grinding discs suitables for 5/8-11 Thread Angle Grinder. Dry or Wet cutting/grinding, wet working will prolong the working life. Recommended speed 5000RPM, maximum speed 8500RPM