Product: CBN Grinding Wheels For CNC GrinderMaterial: CBNType: Standard,Website:http://www.chinabettool.com, Non-standardProduct Description:The CBN grinding wheels can used in CNC grinder or grinding machine.The CBN wheels are composed of the working layer, the matrix and the transition layer.The working layer is CBN layer, it is composed of CBN abrasive and binder, this is the working part.The matrix is composed of bond and metal powder, this part connect the working layer.The matrix is made of aluminum and some other metals.