4 Flute Square End Carbide End Mill TiSiN HRC 68

4 Flute Square End Carbide End Mill for Titanium Alloy and Hardened Steel Machining

The 4 Flute Square End Carbide End Mill is specifically developed for high-performance CNC machining of titanium alloys, stainless steels, hardened steels, and mold materials up to HRC68. Manufactured from premium ultra-fine grain solid carbide and enhanced with a high-temperature resistant coating, this cutter delivers exceptional rigidity, wear resistance, and thermal stability for demanding machining environments.

Featuring a reinforced 4-flute geometry and optimized U-flute design, the cutter provides excellent chip evacuation while maintaining high cutting stability. The square end profile enables accurate shoulder milling, slot milling, side milling, and cavity machining, making it an ideal choice for aerospace components, titanium structural parts, mold inserts, and precision engineering applications.

The long reach design allows access to deeper cavities and narrow machining areas while maintaining dimensional accuracy and reducing vibration during cutting. Combined with advanced coating technology, the cutter performs reliably in difficult-to-machine materials where heat generation and tool wear are major challenges.

Premium Ultra-Fine Grain Carbide

Manufactured from high-quality tungsten carbide to provide:

• Superior rigidity
• Exceptional wear resistance
• High edge strength
• Improved thermal stability
• Extended service life

The carbide substrate is optimized for machining titanium alloys and hardened materials under high cutting loads.

Advanced High-Temperature Coating

The gold-colored coating improves:

• Heat resistance
• Oxidation resistance
• Surface hardness
• Wear resistance
• Anti-adhesion performance

This helps maintain cutting edge sharpness and improves machining efficiency when processing titanium alloys.

Optimized 4-Flute Geometry

The 4-flute design provides:

• Higher rigidity
• Stable cutting performance
• Reduced vibration
• Better surface finish
• Increased productivity

Particularly suitable for finishing and semi-finishing operations requiring high dimensional accuracy.

Long Reach Design

Ideal for:

• Deep cavity machining
• Mold inserts
• Aerospace structures
• Narrow internal features
• Complex titanium components

The extended reach improves accessibility without compromising machining precision.

Typical Applications

• Aerospace Components
• Titanium Structural Parts
• Mold and Die Manufacturing
• Precision Mechanical Components
• Deep Pocket Machining
• Side Wall Finishing
• Shoulder Milling
• Slot Milling
• Semi-Finishing Operations
• Finishing Operations

Advantages

• Optimized for titanium machining
• Excellent high-temperature resistance
• Strong cutting edge strength
• Stable deep cavity machining
• High rigidity 4-flute design
• Long tool life
• Superior surface finish
• Excellent dimensional accuracy
• Suitable for HRC68 materials
• Ideal for aerospace and mold industries