HRC65 Carbide Square End Mills-4 Flute TiSiN Coated for Milling Alloy Steels, Hardened Steel, Metal etc.size D20x150mm

【Product Introduction】

6 Core Upgrades

1. Nano Coating  
2. Fine Micro-Grains  
3. High Wear Resistance  
4. Smooth Cutting  
5. Solid Tungsten Carbide  
6. Clean Cut Surface  

【Stringent Material Selection】
0.2µm Micro-Grain Tungsten Carbide Hard Alloy  
Made from micro-grain tungsten carbide substrate, this end mill delivers higher wear resistance and strength, making it ideal for high-hardness high-speed machining applications. It offers exceptional durability, rapid milling capability, and high hardness. Even under high temperatures generated during high-speed cutting, it maintains superior hardness and wear resistance.

【Fast Milling】
Enhances efficiency with smooth chip evacuation. Processable materials include cast iron, iron, copper, stainless steel, carbon steel, tempered steel, etc.

【Wide Spiral Flute Design】  
Improves chip removal efficiency, enhances vibration resistance, and reduces edge chipping.

【Precision Grinding and Passivation Treatment】 
The surface forms a dense, high-coverage passivation film that removes various contaminants, increases oxidation resistance, and extends tool life.

【TiAlN+TiSiN Nano Coating】
The cutting edge is coated with  TiAlN+TiSiN nano coating, allowing high-speed roughing to finishing of heat-treated materials up to 60 HRC directly. It offers high hardness, excellent wear and friction reduction properties, high thermal conductivity, superior surface finish, and corrosion resistance. Ensures stable performance and extended tool life.

【Cutter Head Design】
- 4-flute design with 35° helix angle for faster chip evacuation, smoother cutting, and higher machining efficiency.  
- Large core diameter design reduces breakage risk.

【Application Scenarios】 
Ideal for side milling and face milling with 4 flutes:  
1. Side Milling / Face Milling  
2. Surface Machining  
3. Countersinking  
4. Side Processing  
5. Groove Cutting  
6. U-Shaped Groove Cutting

Specifications： 【Mill Diameter】+【Cutting Legth】+【Shank Diameter】+【Overall Length】
unit：mm
D1x50: 1-- 3-- 4-- 50
D1.5x50: 1.5-- 4.5-- 4-- 50
D2x50: 2-- 6-- 4-- 50
D2.5x50: 2.5-- 7-- 4-- 50
D3x50: 3-- 8-- 4-- 50
D4x50: 4-- 10-- 4-- 50
D5x50: 5-- 13-- 5-- 50
D6x50: 6-- 15-- 6-- 50
D8x60: 8-- 20-- 8-- 60
D4x75: 4-- 16-- 4-- 75
D6x75: 6-- 25-- 6-- 75
D8x75: 8-- 25-- 8-- 75
D10x75: 10-- 25-- 10-- 75
D12x75: 12-- 30-- 12-- 75
D4x100: 4-- 20-- 4-- 100
D6x100: 6-- 30-- 6-- 100
D8x100: 8-- 35-- 8-- 100
D10x100: 10-- 40-- 10-- 100
D12x100: 12-- 45-- 12-- 100
D14x100: 14-- 40-- 14-- 100
D16x100: 16-- 45-- 16-- 100
D18x100: 18-- 45-- 18-- 100
D20x100: 20-- 45-- 20-- 100
D6x150: 6-- 40-- 6-- 150
D8x150: 8-- 40-- 8-- 150
D10x150: 10-- 50-- 10-- 150
D12x150: 12-- 55-- 12-- 150
D14x150: 14-- 60-- 14-- 150
D16x150: 16-- 70-- 16-- 150
D18x150: 18-- 70-- 18-- 150
D20x150: 20-- 70-- 20-- 150

【Usage Instructions】  
What buyers need to know about tool selection and operation:  
Before using the tool, check the tool runout. If the runout accuracy exceeds 0.01mm, correct it before cutting.  
Keep the tool extension from the collet as short as possible. If a longer extension is necessary, reduce the speed, feed rate, or cutting volume.  
If abnormal vibrations or noises occur during cutting, reduce the speed and feed rate until the situation improves.  
For cooling, mist or air spray methods are recommended to enhance milling effectiveness.