Moresuperhard solid CBN inserts and PCD tools for machining high hardness rolls, cast iron roll, high-speed steel (HSS) roll, Ni-Cr alloy cast iron roll, chilled cast iron roll, threaded steel roll, cast iron rolls, cast steel rolls, tungsten carbide ring, forged steel cold Rolls. Due to its excellent properties, carbide rolls are widely used in the steel industry and their hardness is very high. For the machining of cemented carbide rolls, CBN/PCD Inserts can effectively replace the grinding process to improve production efficiency. The roll is the main workpiece and tool that makes the metal continuously plastically deform on the rolling mill. The roll is mainly composed of three parts: roll body, roll neck and roll head. The roll is the intermediate part of the roll that actually participates in rolling the metal. Has smooth cylindrical or grooved surfaces. Rollers are almost universally used in nearly every manufacturing process in the world. The roller is the main part of the rolling machine, with the pressure which come from the rolling roller to roll the steel.