Vacuum brazed cup wheel grinds cuts incredibly fast and holds its shape. It may be used for wet or dry grinding of granite and marble. Mr. Stone Cup wheels are granite tools used to grind the surface of marble and granite without any chipping or shattering. Using metal bonding technology, Vacuum Brazed Cup wheels are great for grinding or shaping the stone without bouncing or losing their shape. Comes in three different textures: course, medium, and fine.