Concrete Stone Granite Marble Diamond cup grinding wheels for concrete stone are very useful tool for concrete grinding profiling cutting and shaping. It is known as diamond cup wheels or grinding wheels. They are used along with hand grinding polishing machines and connects with its 5/8" 11 or M14 or 5/8" holes, and are important tool for stock removal, surface preparation. It comes in various sizes as 4 inch, 4 1/2 inch, 5 inch, 6 inch and 7 inch. Stadea cup grinding wheels comes in series Standard A and Series Super A. Stadea concrete stone granite marble diamond cup wheels grinding wheels are aggressive durable and cuts stone fast without any chipping proving perfect shape to stones.