Features： 1、[Finishing Process] High demand machining is performed on the tool bar, which makes the tool bar high in strength, strong in shock resistance and longer in life. 2、[Surface Treatment] The surface of the tool bar adopts a new coating process, which has good oxidation resistance and high temperature resistance, and is more durable and increases the service life of the tool holder. 3、[High Hardness] The face milling cutter shank is made of 40cr material with strong hardness, which has strong durability, low loss, stable performance and good working performance. 4、[Efficient] The tool holder has good processing performance and high processing efficiency, which can save you a lot of working time. 5、[Wide Application] The face milling cutters are mainly used in CNC machining centers and CNC engraving machines. It can also be installed on ordinary milling machines to process some harder and less complex heat treated materials. Specification： Item Type: Face Mill Cutter Holder Material: 40cr Alloy Steel Model: NT30 FMB22 45L Usage: For metal processing Package List： 1 x Face Mill Cutter Holder 1 x Storage Box