Carbide Unequal Helix End Mills for Stainless Steel-4 Flute TiALSiN Coated,For Milling Alloy Steels, Hardened Steel, Metal etc. (D6*15*D6*50L*4F)

【Factory Direct Sales】  
We operate our own factory, eliminating middlemen to reduce costs and offer higher cost-effectiveness.  
Same price, better quality; same quality, better price.

【Complete Specifications】  
Wide range of specifications available. Contact customer service for special specifications. Custom orders accepted for bulk quantities.

 6 Core Upgrades  
1. Nano Coating  
2. Fine Micro-Grain Structure  
3. High Wear Resistance  
4. Smooth Cutting Performance  
5. Solid Tungsten Carbide Construction  
6. Clean and Smooth Cutting Surface  

【Stringent Material Selection】
0.2UM micro-grain tungsten carbide hard alloy
We use raw tungsten carbide from leading manufacturers—no recycled materials. The tool is integrally formed in one piece, precision-ground with high-end ANCA grinding equipment and high power, ensuring exceptional stability and fundamentally guaranteeing tool quality. The micro-grain tungsten carbide substrate offers higher wear resistance and strength, excellent processing performance, and maintains high hardness even under high temperatures generated during high-speed cutting.

【ALCrSiN Coating】 
Utilizing a multi-layer coating technology, it forms a dense and high-performance passive film on the surface that effectively removes various types of contaminants while enhancing oxidation resistance. It offers excellent friction reduction, wear resistance, and high thermal conductivity for greater stability, improved processing efficiency, and extended service life.

【Cutter Head Design】
1. Unequal Helix Flutes: A = 38°, B = 42°, A ≠ B. This design reduces vibration and optimizes the distribution of cutting forces, enhancing machining accuracy, dimensional stability, and ensuring that the processed workpieces better meet design requirements.  

2.U-Shaped Bottom Flute: The U-shaped angle is smooth and rounded. A larger flute provides greater chip space, ensures smooth chip evacuation, and minimizes cutting load.

【Tool Shank Design】  
- Universal chamfered round shank ensures firm grip and easy clamping  
- Durable and user-friendly

【Application Scenarios】 
The four-flute design is mainly used for side milling and face milling:  
1. Face milling  
2. Surface machining  
3. Countersinking  
4. Side machining  
5. Groove cutting  
6. U-shaped groove cutting  

【Applicable Materials】 
Suitable for processing metals such as stainless steel and other steel materials.  

【Compatible Machines】
CNC machines, engraving machines, precision engravers (not suitable for bench drills or hand drills).

Specifications：【Mill Diameter】+【Cutting Legth】+【Shank Diameter】+【Overall Length】+【Flute】
unit：mm
D1x50: 1 -- 3 -- 4 -- 50 -- 4
D1.5x50: 1.5 -- 4.5 -- 4 -- 50 -- 4
D2x50: 2 -- 6 -- 4 -- 50 -- 4
D2.5x50: 2.5 -- 7 -- 4 -- 50 -- 4
D3x50: 3 -- 8 -- 4 -- 50 -- 4
D3.5x50: 3.5 -- 9 -- 4 -- 50 -- 4
D4x50: 4 -- 10 -- 4 -- 50 -- 4
D5x50: 5 -- 13 -- 5 -- 50 -- 4
D6x50: 6 -- 15 -- 6 -- 50 -- 4
D8x60: 8 -- 20 -- 8 -- 60 -- 4
D4x75: 4 -- 16 -- 4 -- 75 -- 4
D6x75: 6 -- 25 -- 6 -- 75 -- 4
D8x75: 8 -- 25 -- 8 -- 75 -- 4
D10x75: 10 -- 25 -- 10 -- 75 -- 4
D12x75: 12 -- 30 -- 12 -- 75 -- 4
D4x100: 4 -- 20 -- 4 -- 100 --4
D6x100: 6 -- 30 -- 6 -- 100 --4
D8x100: 8 -- 35 -- 8 -- 100 --4
D10x100: 10 -- 40 -- 10 -- 100 --4
D12x100: 12 -- 45 -- 12 -- 100 --4
D14x100: 14 -- 45 -- 14 -- 100 --4
D16x100: 16 -- 45 -- 16 -- 100 --4
D20x100: 20 -- 45 -- 20 -- 100 --4

【Instructions for Use】
Information buyers need to know when selecting and operating the tool:
1. Before using the tool, check the tool runout. If the runout accuracy exceeds 0.01mm, correct it before proceeding with cutting.  
2. Keep the tool extension out of the collet as short as possible. If a longer extension is necessary, reduce the speed, feed rate, or depth of cut.  
3. If abnormal vibration or noise occurs during cutting, reduce the speed and feed rate until the situation improves.  
4. For cooling steel, mist or air spray cooling is recommended, as it significantly enhances the milling tool’s performance.  
5. Cutting performance can be affected by the workpiece, machine, and software. The provided data are for reference only. Once the cutting process stabilizes, the feed rate can be increased by 30% to 50%.  
6. For other specifications or additional inquiries, please contact customer service.