Product Name: BT-SF Heat Shrink Tool Holder
Product Material: 20CrMnTi
Taper Shank: Tolerance Grade < AT3
Main Body Accuracy: 0.003mm
Heat Treatment Hardness: HRC55 +2
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.