Product Name: High Precision BST Boring Bar Combination Tool Holder
Product Material: 42CrMo
Taper Shank: Tolerance Grade
Main Body Accuracy: 0.003mm
Heat Treatment Hardness: HRC50-52
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.