4 Flute Carbide Step End Mill with Through Coolant AlTiN Coating High Speed Deep Cutting for Steel Titanium Hardened Alloys
| Attribute | Value |
|---|---|
| Product name | 4 Flute Carbide Step End Mill with Through Coolant AlTiN Coating |
| Material | Tungsten carbide |
| Application | Aluminium, cast iron, steel, Inconel 718, titanium, etc |
| Coating | Uncoated (optional TiAlN for steel) |
| Helix | Customized |
| Type | Inner coolant end mill |
Our 4-Flute Carbide Step End Mill is a premium cutting tool engineered for high-performance machining in the toughest materials. Featuring advanced through-coolant technology and a durable AlTiN coating, this end mill delivers exceptional heat resistance, extended tool life, and superior chip evacuation—making it ideal for deep cavity milling, slotting, and profiling in aerospace, mold & die, and heavy industrial applications.
- Solid Tungsten Carbide Construction - Ultra-hard (92-94 HRA) for maximum wear resistance in hardened steels (up to HRC 60) and exotic alloys.
- 4-Flute Optimized Design - Balances material removal rate and surface finish, reducing vibration during high-speed operations.
- Through-Coolant Channels - Internal coolant holes (Ø1.5mm or custom) deliver precise lubrication to the cutting edge, minimizing heat buildup and prolonging tool life.
- AlTiN (Aluminum Titanium Nitride) Coating - Enhances hardness (3,800 HV) and thermal stability (up to 900°C), ideal for dry or near-dry machining.
- Step-End Geometry - Combines roughing and finishing in one tool, eliminating the need for multiple tool changes.
- High-Speed Capable - Engineered for 10,000+ RPM CNC machining centers.
- 50% Longer Tool Life: AlTiN coating reduces flank wear in abrasive materials like titanium and Inconel.
- Efficient Heat Dissipation: Through-coolant design prevents thermal cracking in deep-pocket milling.
- Versatile Performance: Single tool handles slotting, side milling, and plunging operations.
- Reduced Downtime: Fewer tool changes increase productivity in batch processing.
Aerospace: Machining turbine blades (Ti-6Al-4V), engine mounts.
Mold & Die: Deep cavity milling in hardened tool steels (P20, H13).
Oil & Gas: Valve components (Inconel 718, 17-4PH stainless).
Medical: Implant machining (cobalt-chrome, stainless steel).
Get free samples (total value ≤ $20 USD) when you cover the international shipping cost. Perfect for evaluating our product quality and performance risk-free.
New customers can enjoy a $50 discount on the first order of $500 or more. A great way to start our partnership with extra value!
- Advanced grinding machines: All of our grinding machines are WALTER and SAACKE brands.
- Advanced inspection machines: We have ZOLLER, OMEGA, PG1000, etc. for inspecting each carbide tool.
- Fast feedback: We offer 24 hours online service.
- Strict quality control system: We strictly adhere to a three-stage inspection process for each tool:
- Raw material inspection- Semi-finished product inspection after production- Final inspection after coating (pre-shipment check)
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.