... row, Double row, Turbo, Swirl 3. Grit No.: Course Medium, Fine Diamond Cup Wheels, Grinding Wheel are designed for grinding and polishing ... surfaces. Products Description:1. Diameter: 100mm-250mm.2. Application: Diamond double row grinding cup wheels are ideal for form mark ... Outer Diameter From 105mm to 250mm6. Grit No.: Course, Medium, Fine Contact: Mr. Adrian Zhan Diamond Cup Wheel, Grinding Wheel