Taper Shank: Tolerance Grade AT3
Heat Treatment Hardness: HRC58-60
Product Material: 20CrMnTi
Main Body Accuracy: 0.003mm
Product Advantages: Vacuum heat treatment, uniform quenching for high hardness, and good seismic resistance. The taper of the tool holder is ≤ AT3, tested using standard gauges from Germany’s Diebold, ensuring accurate and stable precision positioning.