Feature:1. The steel material has high hardness, good toughness, weldability, and can provide high torsion.2. The entire surface of the drill arbor is electroplated to improve wear resistance and corrosion resistance.3. Fine control processing, more stable performance, more suitable for high‑accuracy machine tool processing.4. The drill arbor is suitable for any spindle machine tool with MT4 taper, and is practical.5. The long straight shank design can be easily inserted into the spindle of the machine tool and is not easy to break.Specification:Item Type: Drill Chuck ArborMaterial: SteelApplicable Scene: Machine toolApplicable Machine Tool: Drilling machineLength: Approx. 164mm / 6.5inDiameter: Approx. 17.788mm / 0.7in Package List:1 x Drill Chuck Arbor