Feature 1Durable Material: Milling cutter extension rod is forged from excellent carbide, not easily deformed, and can be used for powerful milling to improve efficiency. 2Convenient Operation: Router collet chuck extension rod with finely ground bore, high concentricity and stability. Smooth thread, high rigidity, strong clamping force, easy to load and unload. 3Rich Performance: Milling extension rod has a series of excellent properties such as high hardness, wear resistance, better strength and toughness, heat resistance, corrosion resistance, etc. 4Ingenious Design: The internal cooling extension can bring the milling cutter into the deep hole processing slot for processing, solving the problem of deep hole processing for you. 5High Adaptability: Widely used in CNC lathes, machining centers, tapping machines, drilling machines, milling machines and other equipment operations.SpecificationItem Type: MillingCutterExtension RodModel: C12 ER11M 100LMaterial: Cemented carbide .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Extension Rod1 x Wrench1 x Plastic Box