Precision CBN Milling & Boring Cutter for Hardened Steel
High-performance HRC45 CBN tool designed for ultra-fine small-hole machining in hardened steel. Exceptional wear resistance and thermal stability ensure extended tool life under heavy-duty cutting conditions. Mirror-finished cutting edge reduces friction and delivers superior surface finish (Ra ≤ 0.4μm). Ideal for precision automotive, mold, and aerospace components requiring tight tolerances. Exclusive grain-binding technology prevents edge chipping during high-speed operations (up to 300m/min). Compatible with CNC machining centers for drilling, milling, and boring applications. Global wholesale pricing with bulk discounts—direct factory supply eliminates middlemen costs. Ships worldwide with guaranteed lowest rates for industrial buyers.
Applications:
- Hardened steel dies/molds (HRC45-65) - High-precision gear/pump components - Engine block boring & turbine blade milling