1A1 Electroplated Diamond CBN Wheel is made of Steel / Aluminum and Diamond Brasives. We use advanced electroplating process to coat diamond abasives on Steel or Aluminum hubs. Our products are well used in Lapidary polishing and grinding, Gemstone polishing and grinding, Stone and marble grinding and polishing, Glass grinding and polishing, Tungsten Carbide grinding, Drill bits sharpening, Endmill Sharpening, Saw Sharpening, Woodworking tool sharpening and many others.