Specification: 1.ST0101 Diamond Single Row Cup Wheel 2.size:4",5",7" 3.single row 4.cup wheel We have the following workshops: 1. Workshop 1 ... wet soft polishing pads and diamond dry soft polishing pads 4. Workshop 4: carbide brazed tools, like files, hole saws, grout removers ... DIY tools to Japan, Germany, the USA and Australia Diamond Single Row Cup Wheel 4",5",7"