3/4" 90 degree indexable end mill 3/4"x3-1/2" Sandvik R390 inserts #506-SDVK For Sale

ZHOUZIMI R390 Series 3/4" Indexable Milling Cutter Shank
ItemDetailsBrandZHOUZIMI (Made in China)Shank Diameter3/4" (≈19.05mm)Overall Length90mm (3-1/2")Compatible InsertR390-11T308 (Compatible with Sandvik CoroMill 390 series inserts)Number of Flutes3-FluteApplications90° square shoulder milling, step face milling, sidewall finishing, general face milling
Key Features & Benefits

1. High-Strength & Anti-Vibration DesignMade of 42CrMo alloy steel with quenching and tempering heat treatment, the shank balances hardness and toughness, effectively reducing chatter and extending tool life. The black oxide finish provides excellent corrosion resistance against cutting fluids.
2. Universal Compatibility with R390 InsertsPerfectly fits R390-11T308 indexable inserts with a 0.8mm corner radius. Supports roughing, semi-finishing, and finishing operations on steel, stainless steel, cast iron, and more. Suitable for CNC machining centers and milling machines.
3. Precision Manufacturing for High AccuracyThe insert pocket is machined by wire EDM for high positioning accuracy, ensuring perfect insert seating without movement during cutting. Optimized chip gullets ensure smooth chip evacuation, reducing the risk of built-up edge and insert breakage.
4. Cost-Effective Domestic AlternativeA reliable alternative to imported counterparts, offering stable performance at a significantly lower cost, ideal for high-volume production environments.

Usage Tips

• Recommended for both dry and wet machining.
• Use the corresponding insert grade based on your workpiece material for optimal performance.
• Ensure proper insert clamping torque to avoid loosening during high-speed operations.