Include 4-1/2 Inch 644030 Double Row Grinding Wheel Sopko is a leader in grinding wheel hubs.Grinding Wheel is generally composed of two types of materials. One is the abrasive cutting compound used for grinding in Industrial applications. The other is the bond formed between the abrasives. A grinding wheel performs several operations in the grinding and the abrasive machining. Grinding wheels are used in grinding machines.Surface grinding machine Machine may be similar to a milling machine used mainly to grind flat surface Basically there are four different types of surface grinding machines characterized by the movement of their tables and the orientation of grinding wheel spindles •Horizontal spindle and reciprocating tableCGW Bench and pedestal grinding Wheels for General purpose to use on bench grinder and pedestal grinder are available in diameters up to 18'' (450mm) diameter2. Cylindrical Grinder: ( Types of Grinding Machine ) Cylindrical grinders are big size grinders which are used to grind heavy parts. The main components of this type of grinder are base,