VHM varstajyrsin FI 6,0 R3,0 13/57 Z4 HA6 VHM TS B440N MASTERMILL B440N

Precision milling in steel, stainless steel, and cast iron often suffers from vibration, poor chip evacuation, and rapid tool wear. The MASTERMILL B440N corner radius end mill solves these issues with a 6.0 mm cutting diameter and 3.0 mm corner radius, delivering reliable performance for universal milling, finishing, and semi-finishing operations. Its four-flute design and 35° helix angle ensure smooth chip evacuation and reduced vibration, while the TiAlN coating extends tool life in demanding materials.

Who is it for

This end mill is ideal for machinists, toolmakers, and production facilities that require consistent results in steel, stainless steel, and cast iron. It suits CNC milling centers and conventional machines where a solid carbide tool with a corner radius is needed for profiling, slotting, and shoulder milling. The cylindrical HA shank with h6 tolerance ensures secure clamping and high concentricity.

Main features

• Solid carbide (VHM) construction for high rigidity and wear resistance
• TiAlN coating for superior heat resistance and extended tool life
• Corner radius of 3.0 mm reduces chipping and improves surface finish
• Four flutes with 35° helix angle for efficient chip removal and smooth cutting
• Center cutting capability allows plunge milling and ramping
• Cylindrical shank with h6 tolerance for precise tool holding
• Manufactured to DIN 6527 L standard for consistent quality

Specifications

• Cutting diameter (D1): 6.0 mm
• Corner radius (R): 3.0 mm
• Number of flutes (Z): 4
• Cutting length (L1): 13 mm
• Overall length (L2): 57 mm
• Shank diameter (D2): 6 mm
• Shank type: Cylindrical (HA)
• Coating: TiAlN
• Helix angle: 35°
• Cutting edge tolerance: m7
• Shank tolerance: h6
• Manufacturing standard: DIN 6527 L
• Application material: Steel, stainless steel, cast iron
• Application type: Universal milling, finishing, semi-finishing

Tips

For optimal tool life, use appropriate cutting parameters for the workpiece material and ensure proper coolant or air blast to evacuate chips. The center cutting design allows for plunge milling, but ramping at a shallow angle is recommended for best results. Store in a dry environment to protect the TiAlN coating.