Somta Series 340 – 4.0 mm HSS-Co8e 2 Flute Ball Nose End Mill

Somta Series 340 – 4.0 mm HSS-Co8 Ball Nose End Mill (2 Flute) | 3400400

The SOMTA 3400400 is a robust 2-flute ball nose end mill designed for smooth 3-D contouring and slot milling applications. Constructed from high-performance HSS-Co8 material and optionally TiAlN-coated, it ensures long tool life and superior finish in steel, aluminium, and non-ferrous materials. The centre-cut geometry supports both plunging and ramp milling operations with minimal vibration.

Key Features & Benefits

• HSS-Co8 High-Performance Material – Resists wear and maintains cutting edge under heat.
• 2-Flute Ball Nose Design – Optimized for slotting, profiling, and radius milling.
• Centre-Cutting Capability – Allows direct plunging into workpiece.
• Optional TiAlN Coating – Improves lubricity and oxidation resistance.
• Precision Balanced – Ensures vibration-free cutting and smooth surface finishes.

Technical Specifications

• Part No: 3400400
• Tool Type: 2-Flute Ball Nose End Mill
• Cutting Diameter (d): 4 mm
• Flute Length (l₂): 7 mm
• Overall Length (l₁): 51 mm
• Number of Flutes: 2
• Material: High-Speed Steel with 8 % Cobalt (HSS-Co8)
• Coating: Uncoated / TiAlN option
• Helix Angle: 30°
• Standard: DIN 327
• Applications: Profiling, slot milling, and radius contouring in ferrous and non-ferrous materials.

Why Choose SOMTA Cutting Tools?

• Precision and Reliability – Maintains tight tolerances and clean finishes.
• Enhanced Tool Life – TiAlN option extends durability under heat and load.
• Versatile Use – Performs across manual and CNC applications.
• Backed by SOMTA Quality – Engineered to deliver industrial performance and accuracy.

The SOMTA 3400400 offers a perfect balance of precision, strength, and efficiency for radius and profile milling tasks.