• Changzhou Ruilida Tools Co., Ltd.
    Customer B
    Now I enjoy our work. Only buy your end mills. Not so much, but only you.
  • Changzhou Ruilida Tools Co., Ltd.
    Customer R
    Today I tested 50HRC 3 flutes end mill for aluminum. It was very very good. Cuts very good. It barely makes a sound.If you stop watching the machine, you cannot say it is cutting.
Contact Person : Jane
Phone Number : 86-13685240516
Whatsapp : +8613685240516

High Efficiency 3 Flutes Aluminium End Mill DLC Coating Big Capacity 12mm

Place of Origin China
Brand Name RLD Tools
Model Number HRC55-12mm
Minimum Order Quantity 1pcs for standard size
Price Negotiable for Aluminum End Mill
Packaging Details 1pcs piece of end mill in one plastic tube, 10pcs a bundle, then in a carton.
Delivery Time 5-8 work days
Payment Terms T/T/PayPal/Credit Card
Supply Ability 100000pcs/month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Product Name 3 Flute 12mm Aluminum End Mill U Shape With DLC Coating Flute Diameter 12mm
Flute Length 36mm Overall Length 75mm
Grain Size 0.6 Brand RLD
Application Aluminium, Brass And Other Soft Metal Coating Rainbow Color DLC Coating
Feature Durable Tool Life Origin Jiangsu, China
High Light

3 Flutes Aluminium End Mill


DLC Coating Aluminium End Mill


12mm Aluminum Cutting End Mills

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Product Description

12mm DLC Coating Big Capacity High-Efficiency 3 Flutes Aluminium End Mill 

RLD End Mill Catalog in English.pdf


DLC Diamond-like Carbon Coating can provide up to 100% increase in tool life, the polished surface

of the flutes decrease cutting forces, and are excellent in finishing operations. Can be used for dry cutting.


1. Special Cutting Edge: Special cutting edge can increase the cutting ability.

The lifetime of tools and machines will be longer than the uncoated aluminum end mill. 


2. U shape design: It is suitable for high feed rate slot milling


3. Smooth And Wide Flute: Smooth and wide flute will remove the cuttings more easily


4. DLC Coating: can increase lifetime 2-3 times longer


5. High-quality Raw Material: The raw material is used of high toughness, grain-sized carbon tungsten


6. Advanced grinding machine: It is processed by German imported machines. 

It can effectively suppress chatter during processing, which is the basis of excellent quality.



Milling cutter and operating instructions that buyers need to know


1. Before using the tool, please measure the tool runout. When the tool runout accuracy exceeds 0.01mm,

please correct it before cutting.


2. The shorter the tool extends out of the collet, the better. If the tool extends longer, reduce the speed,

feed rate, or cutting amount.


3. In case of abnormal vibration or sound during cutting, please reduce the speed and cutting amount

until the situation is improved.

Product name DLC Coating UShape High-efficiency 3 flutes Square Aluminum End Mill
Size  12×36×75×12D×3F
Suitable for  Aluminum, Copper, brass, etc
Feature  Can be used for roughing and finishing
Flute Number  3
Coating  DLC 
Helix angle 40°
Co 12%
HRA 92.8
TRS Min(N/mm²) 4000
Processing machine ANCA/ 



                                             Carbide Raw Material Introduction


End mill grade Carbide rod Grain size HRA Application
HRC50 YG10X 0.6μm 91.8

Aluminum, iron, low alloy steel,

general steel under hardness HRC45

HRC55 WF25 0.6μm 92.2 Cast Iron, Alloy Steel, General steel under hardness HRC50
HRC60 GU25UF 0.4μm 92.5 Super Alloy Steel, Stainless Steel, Titanium, Inconel, Hardened Steel under hardness HRC55
HRC65 GU092 0.2μm 93.5 Alloy Steel, Hardened Steel under hardness HRC62



                                                            Coating   Introduction 


Coating name Color Thickness Hardness Friction The Max ℃
AlTiN Black 1.5-3 3300 0.4 900
AlTiSiN Copper 1.5-3 3500 0.35 1000
TiAlN Dark Violet 1-3 3000 0.4 800
Blue Nano Blue 2-4 3200 0.45 1000
AlCrN Dark grey 1.5-3 3500 0.3 1250
DLC Black 1-3 1800 0.1 350
Diamond Black 2-12 10000 0.02-0.1 650
Coating also can be customized 



DLC Coating UShape High-efficiency 3 flutes Square Aluminum End Mill
Flute Dia(mm) Overall Length(mm) Cutting Length(mm) Shank Dia(mm) Flutes
4 50 12 4 3
6 50 18 6 3
8 60 24 8 3
10 75 30 10 3
12 75 36 12 3


High Efficiency 3 Flutes Aluminium End Mill DLC Coating Big Capacity 12mm 0High Efficiency 3 Flutes Aluminium End Mill DLC Coating Big Capacity 12mm 1High Efficiency 3 Flutes Aluminium End Mill DLC Coating Big Capacity 12mm 2


Customers Feedback

High Efficiency 3 Flutes Aluminium End Mill DLC Coating Big Capacity 12mm 3




1. Are you a manufacturer or trading company?

Our company is especially producing carbide end mills, drill bits, and reamers.


2. Which CNC grinding machine do you use?

All of our carbide tools are produced by ANCA & machine.

The precision can be assured. 


3. Which shipping method do you usually use?

We usually send goods by express like FedEx, UPS, DHL, TNT, EMS, ETC.


4. How about the delivery time?

For stock items, we can dispatch within 2 business days after receiving payment.

For the out-of-stock items, it depends on the quantity.

Usually is around 5-7 business days.


5. Which payment methods do you accept?

We accept T/T, Trade Assurance Order on Alibaba(credit card), PayPal, etc.

We also can accept CNY. 


6. Can you produce special carbide tools?

Yes, we can produce special carbide tools according to your drawings or samples.

7. How do you ensure the stability of quality?
Our company seldom change rod suppliers.
And we only sell the tools produced by ourselves.
So for the same grade, our quality is always the same.


8. Can you do OEM?
Yes, we can engrave your logo on the tool's shank and make customized stickers.