1.Vacuum Brazed Diamond Cup Wheels

2.With the diamond coverage not only on the face, but also on the rim, they are a versatile 2 in 1 tool; both cutting and grinding are possible. They are ability to be used on marble, concrete. They are the fastest and most effective cup wheels. They have the ability to be used by wet or by dry.

3.Size:4",4.5",5",etc.