• 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

20mm 1" Solid Carbide End Mill 25mm Square 4 Flutes

Place of Origin China
Brand Name RLD Tools
Model Number HRC55
Minimum Order Quantity 5
Price Negotiable
Packaging Details One piece end mill in a plastic tube, ten pieces a bundle, then in carton.
Delivery Time 5-8 work days
Payment Terms T/T/PayPal/Credit Card
Supply Ability 30000pcs/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 Imperial Milling Cutters 1 Inch Carbide End Mill Diameter 1"
Overall Length 4" Coating AlTiSiN
Flute Length 1.5"/customized Shank Tolerance H6
Helix 35° Application Steel, Alloy Steel, Stainless Steel, Brass, Etc.
Flute Number 4 Grain Size 0.6μm
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20mm Solid Carbide End Mill


4 Flutes Solid Carbide End Mill


25mm Square Carbide End Mill

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Product Description

20mm 1" Solid Carbide End Mill 25mm Square 4 Flutes


Solid carbide provides better rigidity than high-speed steel.

It is extremely heat resistant and used for high-speed applications on cast iron, nonferrous materials, and other tough-to-machine materials.
Spiral flutes are constructed of a high flute angle to remove chips more easily.


AlTiSiN: Multilayer, higher nano hardness, extremely high heat resistance, very good thermal insulation.

Suitable for high-performance machining conditions.


Product name HRC50 Imperial Milling Cutters 4 Flutes 1 Inch Carbide End Mill
Feature Wide application
Suitable for  Alloy steel, stainless steel, iron, cast iron, etc. 
Machine type CNC milling machine 
Flutes 4
Coating   AlTiSiN / customized 
Helix 35°
Co 12%
HRA 92.2
TRS Min(N/mm²) 4000
Tolerance Within 0/-0.02mm
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 according to your requirement.


Our package


Step1: The end mill has been finished producing and sent to the warehouse


Step2: 1pcs put in a plastic film, 10pcs per group with a rubber band


Step3: Use the air bubble film to encase the plastic pipe


Step4: Put the goods encased with air bubble film in small packing cartons


Step5: Put another air bubble film on the goods and packaging


Step6: Sent by logistics company or express according to customer's need

 20mm 1" Solid Carbide End Mill 25mm Square 4 Flutes 0

20mm 1" Solid Carbide End Mill 25mm Square 4 Flutes 1

Clent's Feedback
20mm 1" Solid Carbide End Mill 25mm Square 4 Flutes 2


1. Do you prepare inch size carbide end mill in stock? 
For inch size end mill, we usually don't prepare in stock. 
Lead time is around 7-10 days. 

2. Are you a manufacturer or trading company?

We are a professional manufacturer of carbide end mills, drill bits, and reamers. 

3. Which CNC grinding machine do you use?

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

The precision of ANCA & can be assured. 


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 the Chinese Yuan. 

6. How about the MOQ (minimum quantity) for the customized Imperial Milling Cutters?

The MOQ is from 5-20pcs depending on the exact sizes. 


7. Do you have any discounts?
Yes, more quantity will enjoy more discount.
Welcome to send inquiry to us.