Feature:1. 0.03mm accuracy and large torsion guarantee better drilling performance and higher efficiecny.2. From M5 to M20, the large clamping range allows for flexible application with verious screw taps.3. Suitable for tapping machine tools, milling machines, highspeed lathes, CNC machining centers, etc.4. Adopting premium material and sturdy structure, the tap holde tool is very stable and durable.5. Also, the compact size and light weight make the annular cutter arbor very easy to carry and store.Specification:Item Type: Annular Cutter ArborProduct Model: TC20-MT3Product Material: 40CrFunction: Suitable for tapping machine tools, milling machines, high-speed lathes, CNC machining centers and other reversible spindles. Accuracy: 0.03mmClamping Range: M5-M20 (3/16-3/4 inch system)Hardness: HRC45-48Applicable Machine Tool: Drilling MachineTaper: MT3.Package List:1 x Annular Cutter Arbor2 x Wrench