4 Flute HRC70 Solid Carbide Flat End Mill for Stainless Steel Machining

Zhuzhou Jinzuan 4 Flute HRC70 Solid Carbide Flat End Mill | Stainless Steel

Overview:

Zhuzhou Jinzuan 4-flute HRC70 solid carbide flat end mill is specially engineered for stainless steel processing. Made from ultra-fine grain carbide material, it provides exceptional hardness, strong abrasion resistance and stable cutting, ideal for precision and high-speed CNC milling applications.

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Minimum Order Quantity: 10pcs

Delivery Time: 5-8 working days

Payment Terms: T/T, L/C, Western Union, MoneyGram, PayPal

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1.High quality carbide rod
All cutting materials are from international famous brands, high hardness, long tool life.

Grade	HRC45	HRC55	HRC65	HRC68
Materials	DU20	MH12S	ZK40SF	GU25UF
Details	Grain size: 0.8um Co: 8% Flexural strength: 38000N/mm2	Grain size: 0.6um Co:10% Flexural strength: 4100N/mm2	Grain size: 0.5um Co: 12% Flexural strength 4300N/mm2	Grain size: 0.4um Co:12% Flexural strength: 4300N/mm2

2.Super coating
Good coating can improve tools life and production efficiency, and we provide professional suggestions according to your cutting requirements.

Item	Color	Hardness(HV)	Thickness(UM)	Oxidation Temp.(°C)	Friction Coeffient
AlTiN	Black	3300	2.5-3	900	0.3
TiAlN	Viloet	2800	2.5-3	900	0.3
TiSiN	Bronze	3600	3	1000	0.45
AlTiSiN	Blue	4000	4	1200	0.4
TiN	Gold	2500	2.5-3	600	0.4

End mills specification guide

Model	DC(cm)	APMX(cm)	DON(cm)	LF(cm)
Ф134*50L	1	3	4	50
Ф1.544*50L	1.5	4	4	50
Ф264*50L	2	6	4	50
Ф2.584*50L	2.5	8	4	50
Ф393*50L	3	9	3	50
Ф394*50L	3	9	4	50
Ф3.5114*50L	3.5	11	4	50
Ф4124*50L	4	12	4	50
Ф5135*50L	5	13	5	50
Ф5136*50L	5	13	6	50
Ф6156*50L	6	15	6	50
Ф8208*60L	8	20	8	60
Ф8248*60L	8	24	8	60
Ф3123*75L	3	12	3	75
Ф4164*75L	4	16	4	75
Ф6246*75L	6	24	6	75
Ф8258*75L	8	25	8	75
Ф102510*75L	10	25	10	75
Ф123012*75L	12	30	12	75
Ф3123*100L	3	12	3	100
Ф4204*100L	4	20	4	100
Ф6306*100L	6	30	6	100
Ф8358*100L	8	35	8	100
Ф104010*100L	10	40	10	100
Ф124512*100L	12	45	12	100
Ф144514*100L	14	45	14	100
Ф164516*100L	16	45	16	100
Ф184518*100L	18	45	18	100
Ф204520*100L	20	45	20	100
Ф6456*150L	6	45	6	150
Ф8508*150L	8	50	8	150
Ф105510*150L	10	55	10	150
Ф125512*150L	12	55	12	150
Ф147014*150L	14	70	14	150
Ф167016*150L	16	70	16	150
Ф207020*150L	20	70	20	150

* Important Performance Reminder:

The “HRC70” workpiece hardness rating is based on standard machining parameters and recommended conditions.
In actual use, performance and tool life are affected by many factors, including:
- Workpiece material and hardness
- Cutting speed, feed rate, and depth of cut
- Coolant/lubrication method
- Machine tool rigidity and clamping stability

For optimal results, please consult our technical team for parameters tailored to your application before bulk production.

Material :	Cemented Carbide;
Processing :	Finishing; Semi-finishing;
Workpiece :	Steel; Stainless steel; Mold Steel; Cast Iron;
Coating :	ALNOVZ3 Coated;
Brand Name :	Zhuzhou Jinzuan
Place of Origin :	Zhuzhou City - the largest cemented carbide industrial production base in China
Category :	Solid Carbide End Mills

What are coated carbide inserts?

Coated carbide inserts have a layer of another material, such as titanium or aluminum oxide, to enhance their hardness and heat resistance.

Can carbide inserts be used for all materials?

While carbide inserts are versatile, they are not suitable for all materials. They work best with hard materials like steel and cast iron.

Can carbide inserts be sharpened?

Yes, carbide inserts can be sharpened, but it requires a special grinding wheel made of silicon carbide or diamond.

How do I choose the right carbide insert?

The choice of carbide insert depends on the material you’re working with, the type of cut you’re making, and the machine you’re using.

Can carbide inserts break?

While carbide inserts are extremely durable, they can break under excessive force or if used improperly.

How do I maintain my carbide inserts?

Regular cleaning and proper storage can help maintain the longevity of your carbide inserts. Also, avoid using them on inappropriate materials or at incorrect speeds.

"These CNC tools deliver stable performance and high precision in our daily machining work. Good hardness, wear resistance, and long service life help improve efficiency and reduce costs. Reliable quality and fast delivery, highly recommended."
- Director and Owner of CNC Machining Jamil Abbott from United Kindom

"We use these solid carbide tools for daily milling work. They run smoothly with less vibration, offer high machining accuracy, and show excellent performance on carbon steel and alloy steel. Fast delivery and professional service, highly recommended."
- Henry, Russia CNC Cutting Tools Importer

"When we compare yours against others. They work much better than previous tools we have ever used. The lifetime is so long. We will order more."
- Industrial Parts Manufacturer Manager James Peterson from Turkey