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: diamond electroplated products: diamond burrs, diamond files, diamond stone sharpeners, diamond electroplated cutting discs, diamond ... DIY tools to Japan, Germany, the USA and Australia Diamond Single Row Cup Wheel 4",5",7"